Caffeine + theanine (or breathwork) beat caffeine alone for esports reaction time
cognition · Examine.com Study Summaries — June 8–15, 2026 · 2026
In 15 pro Counter-Strike players, adding 200 mg theanine OR 10 min of slow diaphragmatic breathing to a caffeine dose improved auditory reaction time vs. caffeine alone.
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Examine.com
Research lens
In 15 pro Counter-Strike players, adding 200 mg theanine OR 10 min of slow diaphragmatic breathing to a caffeine dose improved auditory reaction time vs. caffeine alone.
- caffeine
- theanine
- diaphragmatic breathing
- esports
- reaction time
- cognition