Caffeine effects

Caffeine's main effect on the body is an increased temporary sense of wakefulness and alertness, ...

Caffeine can cause insomnia, nervousness, restlessness, nausea, increased heart rate, and other s...

What are the side effects from too much caffeine? · Restlessness and shakiness · Insomnia · Heada...

Caffeine acts as a central nervous system stimulant. When it reaches your brain, the most noticea...