What makes you fat and sick VS. What makes you lean and healthy

A short thread about the most powerful levers to look good, feel good and live a long healthy life

There’s a big overlap between the things that make you lean and the thing that affect your health markers
If you take action to look good, a happy “side effect” is that your health markers improve

-insulin resistance
-blood pressure
-inflammation
-testosterone
-cholesterol
Vanity is healthy

Nothing wrong with wanting to look good. But even if you don’t care about how you look, it impacts how you feel.

Get leaner = more energy and libido.

Plenty of mental health benefits such as stress and anxiety reduction.
Longevity

You don’t get chronic disease. While you can’t put your risk of cancer at zero, type 2 diabetes and other metabolic conditions are completely avoidable. And they’re reversible.

You don’t see a lot of overweight people 70-80+ with good quality of life…
Muscle

No, you don’t need to be a bodybuilder. You don’t need to spend multiple hours in the gym. But know that we all lose muscle as we age… unless you’re strategic about it.

You don’t need big bulging biceps. But you want to be relatively muscular.
Cardio

Any exercise is better than no exercise.

The thing about cardio is that it’s inefficient, doesn’t build muscle, and tends to make you hungrier.

If you nail the muscle-building piece… you get the cardiovascular exercise with it
I’m grateful to to share my thoughts and research with 100,000 here on Twitter

To celebrate this milestone, 12 years into my Twitter adventure...

You can get my flagship Anti-Aging Blueprint course for 51% off

gumroad.com/l/bCSAM/Veloci…

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More from @Mangan150

Jan 7
The government just launched new guidelines to replace the old food pyramid.

Are they any good?

Let’s find out: Image
First, they’re leading with data.

1 out of 2 people have diabetes or pre-diabetes. Image
Next, 3 out of 4 people have at least one chronic condition. Image
Read 6 tweets
Dec 29, 2025
As 2025 comes to a close, here's what you need to know about setting your 2026 health goals:

92% of adults have poor metabolic health.

And most are focused on the wrong metrics.

Here's the deal: Image
The most powerful predictor of chronic disease risk isn't your BMI, your weight, or your cholesterol.

It's your waist size. And you can measure it right now at home with nothing but a piece of string. Image
The Formula: Measure your waist at its widest point (around your belly button, not your pants size, since these are fake). That number should be no more than half your height.

Example: At 70 inches tall, your maximum reasonably healthy waist is 35 inches.Image
Read 5 tweets
Dec 29, 2025
Here's how I never workout for more than 60 or 70 minutes per week…

And why 99% of people should do the same: Image
First things first, why should you listen to me on this topic?

I'm a 70 year old former microbiologist. For the past 15 years, I've been working with clients 1-on-1 as abody transformation coach.

So far I've helped 1600 men and women get lean, fit and strong in minimal time. Image
Before we get into it, let me be clear:

I am NOT saying that you should train for 60-70 minutes per week and then sit on your rear end the rest of the time.

As such, we need to distinguish between exercise (training) and activity.
Read 21 tweets
Dec 27, 2025
I’m turning 71 next year, and I have 12% body fat.

If you want to lose 20, 30, 50 or 100 pounds in 2026…

What you don’t want to be doing is doubling down on willpower and discipline.

Here’s what to do instead: Image
The smart way to do self-improvement isn’t to sacrifice more, more, more.

In fact, the best thing you can do, as you reflect on what didn’t work for you in 2025 is to ask:

If I wasn’t allowed to, once again, rely on willpower…
What would I be thinking about instead?

How would I approach things differently if I wasn’t allowed to sacrifice all my free time?

What would have to be true if I refused to attempt a “bootcamp”, and needed to find a forever sustainable approach?
Read 4 tweets
Dec 10, 2025
The 3 practical ways to get healthier:

1. Getting leaner
2. Getting fitter
3. Getting stronger

Here’s what I mean by that:
Getting leaner means losing weight.

But more specifically, it means losing fat while protecting against muscle and bone loss.
Getting fitter means improving exercise capacity.

It’s also referred to as “improving cardio” or increasing endurance.
Read 7 tweets
Nov 5, 2025
A short guide for new readers:

The number 1 cause of chronic disease, including heart disease, many cancers, Alzheimer's, dementia gout and (almost) anything you care to name, is poor metabolic health.

Let me explain:
Poor metabolic health is most commonly visible to the naked eye based on 2 factors:

-Excess body fat (being over fat, no matter the BMI)
-Low muscle mass (being under muscled, again, no matter the BMI)
The official term for poor metabolic health is insulin resistance.

My shortcut is this: the opposite of poor metabolic health = being lean and fit.
Read 5 tweets

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