CAN COFFEE KEEP YOU AWAKE?

Caffeine has stimulating effects is and can keep you awake to an extent. Caffeine, a naturally occurring stimulant found in coffee and other beverages and foods, has a half-life of approximately four to six hours. The half-life refers to the time it takes for your body to process and eliminate half of the caffeine you consumed. During this period, the effects of caffeine gradually diminish. Even after several hours, the impact of caffeine can still be felt in the body. It can keep you feeling alert and awake, potentially interfering with your ability to fall asleep.

Caffeine blocks adenosine, a chemical responsible for inducing tiredness in the body.

Furthermore coffee can also be linked to tiredness, once the caffeine wears off, your body may experience a build-up of adenosine that hits you all at once. To counteract the tiredness caused by caffeine, the NHS suggests opting for decaffeinated alternatives to coffee or gradually reducing your caffeine intake if its effecting your ability to fall asleep at night.