cortisol
Supplements to Lower Cortisol
Which supplements to lower cortisol actually have human trial data, how big the effects are, and why sleep and smart training still...
ashwagandha
Ashwagandha Side Effects
The common ashwagandha side effects, the rare liver and thyroid risks, and who should skip the herb or talk to a doctor...
focus
L-Theanine Focus
One 200 mg dose of L-theanine sped up reaction time about as much as caffeine in a controlled trial. Twelve weeks of...
magnesium
Magnesium Side Effects
The safety limit for magnesium supplements is 350 mg a day, and it was set on the mildest possible endpoint: loose stools....
energy
Nootropic Stack for Energy
The "limitless" formulas sell twelve ingredients. The combination with the most human trials behind it has two — and a 2025 study...
glycinate
Magnesium Glycinate vs Citrate
The only head-to-head trial that exists put citrate ahead of the chelated form, not behind it. Here's what the research actually supports...
mind mood
Natural Sleep Supplements: What Actually Helps
A natural sleep supplement can help — but the effect is measured in minutes, not hours. Here's what the research actually supports...
brain health
Omega 3 for Brain Health: What the Research Actually Shows
Does omega 3 for brain health actually work? An honest, research-backed look at what DHA and EPA do for cognition, memory, and...
focus
Nootropic Supplements: A Fighter's Guide to Focus
A fighter's evidence-based guide to nootropic supplements: what they really are, which ingredients (caffeine + L-theanine, creatine, Bacopa, Rhodiola) hold up in...
anxiety
Magnesium Supplement for Anxiety: What the Research Says
Does a magnesium supplement for anxiety actually work? What the research shows on magnesium for stress — the best form, dose, and...
magnesium
Magnesium Glycinate for Sleep: The Complete Guide
The most research-backed form of magnesium for sleep, how it works, and how to use it — from the martial arts coaches...