Dr. Phil Maffetone is back for an instant classic on how you can maximize your fitness gains and longterm health simultaneously:

MAF Method refresher:

It's not just about the 180 Formula when you pursue MAF, it's a holistic method for overall improved health, wellness and fitness.
There are 8 steps to mastering MAF, which we discuss in detail:
Carb intolerance
Inflammation
Vitamin D
Folate
Build the Aerobic System
Manage Stress
Build a Better Brain
Healthy Aging
More: https://philmaffetone.com/method/

Study: Physically active white men at high risk for plaque buildup in arteries

A recent study showed that white men who exercise are at a higher risk for plaque buildup in the arteries, and news has spread. View the article here. We get Phil's take and what is missing:
Calcification is clearly a dangerous sign, but a downstream problem. Two common causes are:
Increased fat (especially pericardial)
Low vitamin D
Pericardial fat risks:
When abdomen gets fat, the fat around heart also probably excessive - affects cardiac output, stroke volume and the athlete's training and racing HR goes up, having a negative effect on performance and health.
The importance of your waist-to-height ratio. Your waist should be no more than 1/2 your height.
Study mention: American runners have never been slower

Phil's new study on the overfat population, and what they found:

An increase prevalence of exercise among adults (up to 52%)
But also a paralleled increase of overfat people (91% of American adults, and 69% of kids in the US).
WHY is there this trend (i.e. more exercise but getting fatter)?
How was being "overfat" assessed?
Conclusion: you can't outrun a bad diet.

What is a healthy body fat range to be in according to research and Phil?

Normal ranges of body fat percentages--abnormally low, healthy, abnormally high:
BF ranges
Dangerously low
<14% women (but even ~17% +/- could pose risks)
<8% men
Dangerously high

31.6% women
17.6% men
Source: Lohman and Colleagues
Phil says don't exceed these following ranges; it's where things start to go wrong:
29.8% for women
15.3% for men