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Caffeine Before Exercise: Dosage, Timing, Tolerance and Sleep - What Studies Show
Caffeine is the only pre-workout ingredient whose effect is immediate and best documented: 21 meta-analyses. This guide provides the dosage, 3 to 6 mg per kilogram, the timing, 60 minutes before, w...
Pre-workout: what really works according to studies, ingredient by ingredient
The top 100 best-selling pre-workouts contain an average of 18 ingredients, of which 44% are at hidden doses, and beta-alanine is underdosed. This guide covers each ingredient with its effective do...
Sugar and Sleep: The Vicious Cycle Studies Measure, and How to Break Free
More sugar throughout the day, more micro-awakenings at night: this is measured in the sleep laboratory. A high glycemic index diet, more insomnia: this is measured in 77,000 women. And two short n...
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