P. D. Mangan Health & Freedom Maximalist 🇺🇸 Profile picture
Microbiologist, age 69. Helped 1200+ @ManganCoaching clients get lean, fit, & 2X energy in 60 mins/week without keto, cardio, or calorie-counting. Learn more:
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Mar 16 • 4 tweets • 2 min read
The well-known negative correlation between water hardness and atherosclerotic heart disease can be explained almost entirely by lithium levels. Image The inverse association of water hardness and cardiovascular disease has been found in many countries. Image
Mar 4 • 9 tweets • 3 min read
How do you know if you're healthy?

Here's my metabolic health scorecard:

1. High blood pressure (without meds)
2. A1C over 5.6% without meds
3. HOMA-IR above 1.4
4. Triglycerides / HDL over 2
5. Overweight or obese BMI
6. High body fat %
7. Waistline > 50% of height Image High blood pressure without meds:

While there is a genetic component, the root cause of high blood pressure is related to your weight and especially body fat %.
Feb 26 • 19 tweets • 4 min read
Why I never workout for more than 75 minutes per week…

And why you should (probably) train even less than I do.

Here's why: Image What do I mean by working out?

Let's quickly define exercise:

Exercise is planned, structured, repetitive, and intentional movement.

Its role is to improve or maintain physical fitness.

Walking, tennis, swimming or biking leisurely are "activity", not exercise.
Sep 21, 2023 • 18 tweets • 4 min read
Why I never workout for more than 75 minutes per week…

And why you should (probably) train even less than I do.

Here's why: Image Let's quickly define exercise:

Exercise is planned, structured, repetitive, and intentional movement intended to improve or maintain physical fitness.

Things like walking, swimming or cycling leisurely are "activity", not exercise. Same idea for playing golf or tennis.
Aug 30, 2023 • 4 tweets • 1 min read
Americans taking psychiatric drugs.

Notable: women, people over age 65, and whites. Must be a staggering number of older white women taking one of these drugs.

All of this can't possibly be necessary. Image jamanetwork.com/journals/jamai…
Aug 23, 2023 • 5 tweets • 2 min read
One session per week of high intensity exercise reduced risk of heart disease death by 40 to 50%.

There was no additional benefit from increasing frequency or duration of exercise. Image A single bout of exercise creates clinically relevant protection against cardiovascular events. Image
Aug 23, 2023 • 4 tweets • 2 min read
Exercise kills cancer.

When blood serum from men who performed a bout of high-intensity exercise was added to cancer cell culture, the cells died. No effect on normal cells.

Every time you exercise with intensity, you're inhibiting cancer. Image For everyone who asked for a link to the paper, here it is.

Usually if I link to a paper, hardly anyone cares, and when I don't link, all of a sudden lots of people do.

Furthermore, you get dinged on Twitter for outside URLs. They don't want people leaving this platform.
Aug 7, 2023 • 13 tweets • 4 min read
Taurine is an amino acid that has many benefits, including possibly extending lifespan and healthspan in humans.

The main dietary sources of taurine are meat, fish, eggs, and dairy.

What are the benefits?

Let's take a look 👇 Image A recent bombshell scientific report found that

1. taurine levels decline with age in humans, monkeys, and mice

2. to determine whether taurine was causal in aging, researchers fed mice and monkeys taurine

3. mice lived longer, and health of monkeys improved Image
Jul 28, 2023 • 5 tweets • 2 min read
Reversal of cognitive decline in Alzheimer's disease.

A program involving changes in diet, exercise, supplementation, and sleep optimization massively outperformed Big Pharma's drugs. Image Diet eliminated processed foods and refined carbohydrates.

Exercise included both aerobic and strength training.

Supplements included vitamin D.

Full description of the protocol here: content.iospress.com/articles/journ…
Jul 9, 2023 • 12 tweets • 4 min read
Intestinal alkaline phosphatase (IAP) targets the gut barrier to prevent aging

Mice supplemented with IAP lived about 30% longer

IAP knockout mice died sooner IAP is an enzyme secreted by intestinal epithelial cells which protects the gut lining and detoxifies bacterial endotoxin.

In humans, IAP declines with age

https://t.co/V4UmjL5HZWncbi.nlm.nih.gov/pmc/articles/P…
Jun 15, 2023 • 5 tweets • 1 min read
Not everyone who is lean is metabolically healthy.

But it’s even more obvious that few people who are not lean are metabolically healthy on all fronts. So aim to be lean AND metabolically healthy.

With lean defined as having good body comparison: relatively low body fat percentage, and some muscle.
Jun 12, 2023 • 14 tweets • 3 min read
Reality check #1:

There’s no such thing as maintenance when it comes to muscle and body composition.

Unless your incredibly detail-oriented, and live and train like a pro athlete or bodybuilder…

The reality is that you’re either net gaining or net losing muscle. This is true for both men and women from age about age 30 onwards.

The sooner you accept this, the sooner you can thrive.

Resistance training is for everyone, and there is no substitute.

Not walking, running, swimming, playing sports or working a physical job.
Jun 11, 2023 • 5 tweets • 1 min read
If metabolic health is mental health, it stands to reason that dialed in nutrition and some physical activity should be the first line of defense against most cases of stress, anxiety, and perhaps, many depression cases. Mental wellness and physiological effects can usually be felt quickly.

This includes energy levels, mental clarity, and reduction in emotional variability.

This is not medical advice, of course, but there is no downside to eating real food, not being sedentary…
Jun 8, 2023 • 5 tweets • 2 min read
New: Taurine, a non-essential amino acid, increases lifespan and healthspan in mice and improves health in non-human primates.

Better bone density, exercise capacity, mitochondrial function. Image Human equivalent dose might be ~5 g/d.

h/t @mike_lustgarten
science.org/doi/10.1126/sc…
Jun 8, 2023 • 4 tweets • 1 min read
It’s a big mistake to allow your children’s current favorite foods as a reason to delay losing excess fat, and reclaiming your health.

Children are sponges, and are looking to you as a leader.

They deserve you at your best, so do them a favor and take the lead. We can all agree that too much screen time is a bad idea.

And I hope to help parents see that ultra-processed food is much worse.
Jun 7, 2023 • 6 tweets • 2 min read
There is no good, agreed-upon definition of what it means to be heathy.

In my view it’s simply:
• Good body composition
• Normal or optimal range in your routine blood work, without medication
• Mood and emotional stability outside of extreme events
• High enough energy… twitter.com/i/web/status/1… Let’s deconstruct these:

Good body composition means more than the number in the scale.

It’s the degree to which you are lean and muscular.
Jun 7, 2023 • 5 tweets • 2 min read
A common training misconception for newbies is expecting bodyweight exercises to be easy.

Reality is, push-ups, dips, chin ups, and especially pull ups are more difficult to perform in good form than machine or free weight exercises. I would go as far as saying a purely calisthenics workout is likely to discourage someone overweight or obese.

It’s a lot wiser to start by creating resistance with machines, free weights, resistance bands or something like a total gym device.
Jun 1, 2023 • 4 tweets • 2 min read
Visceral fat drives many chronic diseases, and increases with aging.

Yet developing visceral fat is largely a choice and can be avoided. Image Visceral fat can increase from 200 to 400% between age 20 and age 60.

Weight gain, loss of muscle, and a shift from peripheral to central fat patterning contributes to this increase.

This is entirely preventable.

ncbi.nlm.nih.gov/pmc/articles/P…
May 31, 2023 • 4 tweets • 1 min read
The problem with going with the flow, and following the crowd’s general lifestyle?

You get the same results:
-Poor body composition
-Low energy levels
-Subpar libido

And more often than not, you’re more stressed out and anxious than you would otherwise be. And on top of short-term lower quality of life described in the first tweet…

You’re also increasing the risk of getting metabolic syndrome, fatty liver and almost every chronic disease.
May 26, 2023 • 10 tweets • 2 min read
What are the clues of poor metabolic health?

Each is red flag:

-Elevated blood pressure without meds
-A1C higher than 5.6% without meds
-High triglyceride-glucose index
-Triglycerides / HDL ratio over 2
-Overweight or obese BMI
-High body fat %
-Large waistline Elevated blood pressure without meds:

While there is a genetic component, the root cause of high blood pressure is related to weight/body composition/metabolic health
May 21, 2023 • 6 tweets • 2 min read
Powerful forces control the mainstream narrative about health, fitness and quality of life.

From cholesterol and statins, to vegetable oils and diabetes, these forces continue to cherry-pick data to save face and refuse to even consider the possibility that they’ve been dead… twitter.com/i/web/status/1… These same forces—Big Food, Big Pharma, the medical establishment—also love to use calories as unit to compare food.

Why? To make people believe that 100 calories of Doritos or Oreos has the same impact on your body and health as 100 calories of meat, eggs or berries.