The effects of caffeine usually last three to ... Size, age, and genetics all play a role in how much caffeine your body can take; but as a general rule, it is considered dangerous for adults ...
Caffeine's stimulating effects can paradoxically lead to sleepiness due to tolerance, adenosine receptor changes, and individual metabolic differences.
This article explores recent findings on caffeine consumption, focusing on both its potential benefits and risks for heart health. Interest in the effects of caffeine on heart health has ...