Feeling a bit tired in the afternoon is a normal physiological response and should not automatically be pathologized as a disorder or deficiency.

A low sodium-to-potassium ratio in blood work can indicate high allostatic load from overtraining, signaling a need for rest rather than a dietary change.

It is extraordinarily rare to have type 2 diabetes if you have high-quality muscle mass, making it a key defense against metabolic issues.

The goal isn't to be anti-aging by minimizing all risk, but to be anti-fragile by building the resilience to handle life's insults and enjoy experiences.

Obsessing over data from consumer sleep trackers can induce a clinical sleep disorder known as orthosomnia.

The key to a successful wind-down routine is the consistent pattern of activities, which acts as a Pavlovian cue to signal your body it's time for sleep.

Instead of striving to be an optimal sleeper, it's more beneficial to be a resilient sleeper who can perform well even with inconsistent schedules.

For your perceived energy levels, sleep regularity will have a bigger impact than the total number of hours you sleep.

Pushing through discomfort develops specific areas of the brain, meaning toughness is a learnable skill that can be physically built.