6 The Reasons Why Caffeine Doesn't Work For Everyone

Genetic Variability

Genetic makeup influences how caffeine is processed.

Tolerance

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

Sleep Disorders

Disrupted sleep patterns can reduce caffeine's efficacy.

Medications

Interactions with drugs can diminish its effects.

Hydration Levels

Dehydration can negate caffeine's benefits.

Stress

High stress levels might counteract its effects.