シャドーイング練習: Peptides Are Insane - 動画で英語スピーキングを学ぶ

Peptides are kind of insane, and right now, they're everywhere.

You cannot open social media without seeing a new peptide that'll transform your body.

There's millions of people that are taking peptides, and it's radically improved their health.

What if I told you that there was a peptide that tells your brain to grow new neurons?

If you are not on peptides, I want to know why you are not on peptide.

I am now on five different peptides.

You're telling me I'm going to be able to inject myself with a Zenpec to lose the fat, and then inject myself with something else to keep the muscle? it's wild usually big claims like

that trigger my detector right away and they did in this case too

but the thing is peptides actually do work at least some

of them do for the first time ever people can simply take a peptide like ozempic

and fat seems to melt off like a lot this is

what weight loss typically looks like over a year of diet

and exercise and this is what weight loss typically looks like over a year of diet

and exercise plus a glp1 peptide people have been struggling with fat loss for decades.

So this is a huge shift and naturally it raises the question if peptides can do that, what else can they do?

So I went down the rabbit hole.

I pulled together all the studies I could find on peptides, the good and the bad.

In this video, I want us to take these peptides together, see what happens inside our bodies and figure out which ones are actually worth the hype.

At this point, I'm sure you've probably heard about peptides, but you may not know what they actually do a lot of people think of them like mini steroids

but chemically no they're nothing like testosterone they're also not stimulants like the caffeine in your coffee they're not vitamins

or minerals or anything like that biochemically they're actually most similar to protein

if you take a scoop of protein powder

and zoom all the way in the individual protein molecules look

like this long tangled chains of amino acids you get a peptide

if you untangle those long chains and cut them down into shorter chains of amino acids.

There are about 20 amino acids in total that can be linked in different combinations to make millions of different peptides.

But we can simplify all that down to the three kinds of peptides that health and fitness people really care about.

First, the fat loss peptides.

This is where most of the mainstream hype is coming from.

These are the GLP -1 peptides like Ozempic.

Second, the injury healing peptides like BPC -157, also known as the Wolverine peptides,

and third, the anti -aging peptides that claim to help you stay fitter, healthier, and younger looking.

Right now, one in every eight U .S adults say that they use fat loss peptides,

and tens of millions of people are taking fat loss peptides right now across the globe.

Obviously, this has become a really lucrative business, which is why I want to say up front that I'm not sponsored by any peptide companies.

I do have a degree in biochemistry, and I've published peer -reviewed studies on muscle growth, and I'll be fact -checking this video with researchers and medical doctors to make sure it's as unbiased as possible.

Easily the most famous fat loss peptide is this one.

It's called semaglutide.

It's a big GLP -1 peptide sold under the brand names Ozempic and Wegovy.

To take semaglutide, you usually inject it because if you swallow it, it gets destroyed by the acid in your stomach.

There is an oral version, but it's still degraded in the stomach, so you need a higher dose and special technology to help it get absorbed.

Surprisingly, the oral version seems to be getting pretty close to the injectable version.

After you inject semaglutide into a layer of fat, the peptide moves into the surrounding blood vessels and travels to three places, your pancreas, your stomach, and your brain,

where it activates GLP -1 receptors.

That tells your pancreas to stabilize your blood sugar, your stomach to slow down its emptying, and your brain to stop sending so many hunger signals.

Those three effects create one very simple, yet very powerful super effect.

You feel less hungry.

Unlike pretty much every other fat loss supplement, semaglutide works in a pretty unique way.

It doesn't claim to burn more fat.

It also doesn't claim to boost your metabolism.

Instead, what it does is it simply lowers your appetite.

So you just eat less calories without really noticing it.

And that really works.

Because back in 2018, right before the peptide hype started to take off, 2 ,000 people volunteered to take semaglutide for the first time.

But here's the thing.

The researchers only gave some of the subjects real semaglutide.

They gave the other subjects a fake placebo that looked like semaglutide, but it didn't have any actual semaglutide in it.

None of the subjects knew whether they were taking the real semaglutide or the fake placebo semaglutide, and all the subjects were told to exercise and given dietary counseling.

Everyone's average weight was 232 pounds on day one.

The group taking semaglutide lost 34 pounds in 16 months on average,

but the group taking the fake placebo semaglutide only lost six pounds.

That's 34 pounds of weight loss versus six pounds of weight loss, with the only difference being a single peptide.

But that was 2018.

These days there are newer peptides that honestly kind of wipe the floor with Ozempic.

For example, compared to semaglutide's 15 % weight loss, a newer peptide called terzepatide caused 23 % weight loss in a similar time frame.

And retitrutide just passed through phase 3 clinical trials caused 28 % weight loss.

That means if you started at 250 pounds and took retitrutide for about a year and a half, you'd be expected to lose around 71 pounds.

The reason they work so well is that semaglutide only activates one receptor, GLP -1, but terzepatide activates two receptors, GLP -1 and GIP.

Reditrutide activates three, so your hunger gets even more blunted and there may be a metabolic effect too.

The thing is, these fat loss peptides clearly do work, but are there long -term health issues?

Are they even safe?

right hey buddy what's up man you hear me yeah yeah can hear you loud and clear

so you prescribe weight loss peptides to patients right yeah uh i've been fully board certified since 2014

and on so i don't think there's really any doubt at this point

that they work right yeah they are the most effective, non -surgical way for weight loss, yes.

Would you say that there's any doubt about whether they're safe or not?

No, there doesn't seem to be any big smoking gun.

There are some potential very rare things

that may not show up in a randomized controlled trial where

you just don't have enough people to see some of these rare things.

They're extremely safe, especially in the indicated population.

In your clinical practice, have you run into any issues with patients

or do most people seem to tolerate them pretty well by

far the most common side effect you see in the trials

and what we see clinically is nausea

and vomiting at the severe level high in the beginning

when you start the medicine but over time the nausea just goes down the other things

that we see constipation things get slower in the gi tract

and that actually doesn't go away over time the constipation stays constant

but other weird side effects people feeling like they have uti

i've had some patients with developing gallstones i haven't had any patients with gallbladder attacks

but you see it once in a while

but that's still relatively rare as well for what it's worth of the three weight loss peptides

that i've focused on semaglutide and trisepatide have fda health canada

and european medicines agencies approval retitrutide is just now getting through phase three clinical trial

so it doesn't have approval yet but based on what i've seen also seems to be tolerated pretty well overall.

Yeah, very similar.

Maybe a slight increase risk of nausea, vomiting, and a few other things.

But really, until you do head -to -head, you won't know for sure.

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But it looks pretty similar.

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These peptides do have a dark side, though.

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This January at the gym, a lot of people noticed that there wasn't the same New Year's rush as usual.

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I think that could be

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because a lot of people who set New Year's resolutions to

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lose weight this year simply just started taking a peptide instead of exercising, which sucks if true because exercise has mental health benefits

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that you simply can't replace and you will lose a lot of muscle if you take one of these peptides without lifting.

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In fact, without weightlifting and proper protein intake, about 40 % of the weight lost on the GLP -1 peptide is lean mass.

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That's almost certainly not due to the peptide itself, but simply the fact that people are just losing a lot of weight without eating enough protein or training hard enough.

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I do think a lot of people using GLP -1s do know about the risk of muscle loss though, because more people are using protein powder now than ever before

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which sounds great in theory

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but in some places it seems to be leading to protein shortages

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which may be causing the price of protein powder to skyrocket much more concerning is the fact

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that you technically need a prescription to get a glp1 peptide

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but a lot of people either won't qualify

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or don't want to get access through their doctor as a

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result swaths of people are buying them from black market

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and gray market sources online where there's often zero quality control

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that ease of access means that now they're being used by already lean, healthy people who are trying to get even thinner,

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which could further shift society's expectations about what a healthy or desirable body should look like.

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But to me, that's different than overweight people using them as medicine to try to help them get down to a healthier body weight.

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As someone who prescribes these medications to people, you'll often hear it's cheating, it's taking a shortcut.

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Do you see it as a shortcut?

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As someone who has to take a few medicines for my own diseases that I have, I have hypothyroidism, Hashimoto's, I would think of it similar to like put the fork down

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and start eating a DASH -like diet and do exercise for hypertension.

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Nobody shames anybody for taking an anti -hypertensive or tells them it's a shortcut.

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Obesity has biological drivers in it that we can't just necessarily out discipline or out willpower.

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And so it

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goes

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and hits the receptors in the brain to basically not have

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those same biological drivers anymore kind of evens the playing field

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so i don't see it like a shortcut at all yeah

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i think people almost like hate on shortcuts a little bit

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too much too right like to me there's a fine line between like taking a shortcut

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and just like working smarter if you can get the same outcome

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for like less torture on yourself why make it harder on

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yourself than it needs to be right there is a slippery

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slope there where you're just like always looking for the easy way out

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but like at the same time you know i don't think it's

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so black and white as to say like oh because it's a shortcut, therefore it's not a good thing.

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A good analogy would be like, okay, you got to go from New York to LA.

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Do you take the direct flight or do you drive?

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Do you take a train?

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Do you walk?

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Do you hitchhike?

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Do you bike there?

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We have newer technology.

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As long as it's safe and not harming people, why not utilize good new technology for the better?

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That's the way I would say it.

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Now, before we move on to the next category of peptides, should you take a GLP -1?

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Well, I think if you're already at a healthy body fat percentage, you feel good, and you're performing well, no. I do think diet and exercise should be your first go -to,

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but if you've been struggling to lose weight and you've talked to your doctor about this medication, I think that's a decision that you and your doctor can come to.

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We can debate whether the good outweighs the bad societally, but what isn't up for debate is that these peptides that we've covered so far clearly do a lot for fat loss.

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So then, what in the world do the other peptides do?

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Injuries suck, and they happen to every serious lifter at some point.

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And until recently, your main options for treating an injury were basically physiotherapy and maybe surgery if it was serious enough.

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But now, there's a peptide for that.

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It's called BPC -157, and it has absolutely raving reviews.

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You need to know about the BPC -157.

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BPC -157 is a miracle compound.

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It has anti -inflammatory properties, also blood -driving properties.

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It tells damaged tissues how to heal.

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BPC stands for Body Protection Compound.

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And it's surprisingly simple.

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Just 15 amino acids taken from a larger protective protein and human gastric juice.

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It was developed by Croatian researchers in the early 90s while studying potential healing effects it had in the stomach.

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To test those healing effects elsewhere, scientists gave BPC -157 to rats with an injured leg and discovered that,

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yeah, 50 % more blood vessels formed in the injured leg.

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More blood vessels should mean more blood flow and more nutrients going to the damaged tissue, which led later scientists to test BPC -157 in a variety of different tissues,

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including muscles, tendons, and ligaments.

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Once again, it accelerated healing everywhere it went.

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But there's a catch, and it's a big one.

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All those studies were done on rats, rabbits, and dogs, not humans.

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BPC -157, the wolverine peptide all over the internet, has only ever been formally studied in 30 people.

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That's it.

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Compared with semaglutide or terzepatide, which have been tested on tens of thousands of people across multi -year, phase 3, placebo -controlled clinical trials,

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BPC -157 has just three pilot studies with barely a small handful of subjects in each.

177

To be fair, those pilot studies did show some promise for knee pain, bladder pain, and safety, but they're still plagued by really small sample sizes and no placebo or control group.

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There's no high -quality, well -controlled science.

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There are plenty of anecdotes, though, and I think they're worth something.

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I know people who've had an injury that's been nagging them for years suddenly heal up after taking BPC.

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The internet is full of similar stories.

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I was in a really bad car accident.

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I immediately started taking BPC that day.

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I was back at work in like two or three days.

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I've been running the BPC because I have some pretty bad elbow inflammation.

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But then a few days of being back on that, I have no issues, no inflammation, no pain.

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I healed a little knee injury.

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I healed some nerve damage.

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I've healed my gut.

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I've healed my shoulder.

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I know that it works, and I know that it works super fast.

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Eh, we need to be careful with these, though, because most injuries heal with time anyway.

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If you started taking BPC and your shoulder finally started feeling better after six weeks, it's tempting to credit the peptide, and maybe it was the peptide,

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or maybe your shoulder just started healing naturally on its own.

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Without a placebo -controlled trial, it's hard to know.

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In my opinion, the mechanism does make sense.

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The animal data is intriguing, and I hope more high -quality human research happens.

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But as of now, it's still not FDA -approved, it's banned by WADA, and sourcing it can be sketchy.

199

So as frustrating as injuries are, I'd stick to the boring stuff for now.

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Manage your training loads, try to find pain -free variations, and gradually build yourself back up over time.

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If your injury isn't getting better, have it looked at by a qualified physical therapist.

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So before we cover the last peptide category, should you take BPC -157?

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I think, no. I just don't think that the human evidence is there.

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Sourcing can be sketchy, and even though the mechanism does make sense, I'd stick to the verified, safe, boring stuff for now.

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but injuries aren't what most people are truly worried about anyway it goes deeper than

206

that but a lot of people are really worried about is aging getting older and looking older

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the most ambitious peptide

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that we've covered to date is this tiny little four amino acid peptide called epitalon

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because unlike the glp1 peptides that promise weight loss

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or the injury peptides that promise healing epitalon is aiming at something much bigger

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aging itself epitalon works by targeting the most fundamental structure in

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your entire body your dna every muscle tendon organ blood cell

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that you've ever had has come from instructions encoded in your dna

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and to keep those instructions protected your dna is packaged up

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into chromosomes with these little caps on the end called telomeres as we get older those telomeres get shorter

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and shorter and that may be one of the key reasons why we age in the first place

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And it's why so much anti -aging research is focused on telomeres.

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So this is where the peptide epitalon comes in.

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It activates an enzyme called telomerase, which helps rebuild those protective telomeres as they shorten over time.

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Sounds promising on paper, but does epitalon actually increase lifespan in the real world?

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Well, actually, yes.

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Yes, it does.

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At least it does in flies, mice, and rats.

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Unfortunately, when it comes to increasing our human lifespans, the only studies that we have is this 2003 study from Russia, and this 2006 study from the same Russian research group,

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and neither study was independently replicated outside of Russia.

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There's little doubt that telomeric shortening is involved in the aging process, but over -activating telomerase may be involved in cancer development, so it is a delicate balance.

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And when it comes to epitalon, and frankly the rest of these peptides, the human evidence on anti -aging specifically just really isn't there at all that's kind of okay though

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because humans are already uniquely well adapted for longevity

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when you compare humans to other mammals of a similar size you consistently see

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that humans live much longer and virtually all the compounds out there

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that are being marketed as anti -aging solutions follow a similar

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pattern they probably work in rats they might work in pigs sometimes they'll work in other primates

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and then they do basically nothing when it comes to humans

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but we don't really need to look for a peptide to help us live longer anyway

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because the science is already quite clear on what helps slow aging down in humans.

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It's relationships, friends, family, and community.

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That's the big one.

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And the rest is the same boring stuff you've heard about before.

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Exercise, sleep well, don't smoke, don't drink too much, and try to maintain a healthy body weight.

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Not as sexy as a new anti -aging peptide, but those truly are the things that move the needle the most.

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So should you take an anti -aging peptide i think no the human evidence is just really really scant

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and like i said we already know what helps with aging

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the most it's the boring stuff my key message with this video is

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that just because there are certain peptides

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that do work for weight loss doesn't mean that everything

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that falls under the category peptides will work for everything it's

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ultimately your daily habits that'll determine how well you follow through on your health and fitness goals

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one habit

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that i follow through on pretty much every day is tracking

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my nutrition with macro factor i'm a part owner of the app

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and we've done everything possible to make it the easiest simplest

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and most intuitive nutrition app on the market it isn't just

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a tracker though it uses science -based algorithms to learn your specific metabolism

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and then updates your calories and macros over time to mathematically guarantee

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that you get to your goal as long as you stick

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to the plan we have a really amazing community with over 500 000 users

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and i think the app's reviews and testimonials speak for themselves

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if you'd like to try it out just use code jeff

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when you download on the app store or google play

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and that'll get you two weeks for free there are zero ads on the app

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and we'll never sell your data and we have 24 -hour support

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if you ever run into anything that you're not sure about

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so click the first link in the description box below

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or scan this qr code on screen if you've never tracked your nutrition before

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or you just haven't been consistent with it i really think

266

macro factor will help you get to where you want to be that's it for this one guys thank you

267

so much for watching and i'll see you all here in the next soon.

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シャドーイングとは？英語上達に効果的な理由

シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。

シャドーイングのやり方: ステップ別の完全ガイドを読む →

シャドーイング練習: Peptides Are Insane - 動画で英語スピーキングを学ぶ

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この動画での英語学習の目標

フレーズバンク：使い回せる表現

弱点を克服しよう：発音とリズム

シャドーイングとは？英語上達に効果的な理由