Blocking adenosine receptors can lead to increased sensitivity, causing tiredness as the effect wears off.
Caffeine's diuretic effect can lead to dehydration, causing fatigue.
Consuming caffeine can impair sleep quality, leading to feeling tired.
Regular consumption may lead to tolerance, reducing its stimulating effects and increasing fatigue.
Caffeinated drinks with high sugar can cause energy spikes and crashes, leading to tiredness.
Skipping your usual caffeine can lead to withdrawal fatigue.
Individual differences in metabolism can affect how caffeine impacts energy levels.
Monitor intake, stay hydrated, and avoid caffeine late in the day for better energy levels.