Where did the advice to not lift heavy weights come from?
Nearly every warning you've heard about lifting weights was written down before anybody checked it. We trace where those warnings came from, starting with a Harvard student in 1854 and ending with a c...
2 Okt 57min
Is It Safe to Train When the Air Is Full of Wildfire Smoke?
Parts of the country now get a few weeks of wildfire smoke every year, and the obvious question is whether there is a point where the air is bad enough that the workout costs you more than it gives yo...
24 Sep 37min
Do You Need a Calorie Surplus to Build Muscle? | Dr. Eric Helms
Most lifters have been told they need to eat in a Calorie surplus to build muscle. That rule has always come with a list of exceptions: unless you're new, unless you're carrying extra body fat, unless...
17 Sep 2h 1min
Is Obesity A Muscle Problem?
Muscle is where most of the glucose goes, and muscle insulin resistance is the first thing that breaks on the road to type 2 diabetes. Both of those are true, and neither one means that building more ...
4 Sep 1h 17min
Who Needs Testosterone, and Who's Not Getting It I Signal Episode 4
Most men who start testosterone never needed it, and some who genuinely do never get treated. In the final episode of the Signal series, Dr. Jordan Feigenbaum and Dr. Austin Baraki work through who ac...
27 Aug 1h 26min
Your Fat Has a Storage Limit
In 2004 a surgeon removed about ten kilograms of fat from fifteen women and measured everything that mattered. Nothing improved. Four years later, it still hadn't.That result should have ended an argu...
20 Aug 49min
Lifting and longevity: is 1 hour a week really the limit? Plus GLP1s and mood, training with ME/CFS, and Protein vs. Calories
A popular paper claimed the longevity benefit of lifting disappears once you train more than an hour a week. It's a real paper, but the claim is a misread. This is the free cut of this month's Direct ...
12 Aug 46min
The FDA Voted for 6 Peptides. Its Own Scientists Said No
An FDA advisory committee just voted to open a legal compounding supply line for six of seven peptides, including BPC-157 and TB-500, over the objection of the FDA's own scientists, who recommended ag...
7 Aug 1h 6min
