6 The Reasons Why Caffeine Doesn't Work For Everyone

Genetic Variability

Genetic makeup influences how caffeine is processed.


Regular users develop tolerance, needing more for the same effect.

Sleep Disorders

Disrupted sleep patterns can reduce caffeine's efficacy.


Interactions with drugs can diminish its effects.

Hydration Levels

Dehydration can negate caffeine's benefits.


High stress levels might counteract its effects.