The science of caffeine free energy drinks: How to boost focus without the crash
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Jan 10, 2026 · 11 min read
For years, “energy” has been synonymous with “stimulation.” But a new wave of non-caffeinated options is changing how men fuel their workdays and workouts. Here is the physiology behind generating power without the jittery debt. “We often confuse agitation with energy. Caffeine borrows energy from your future by blocking sleep signals, but it doesn’t actually ...