Caffeine is one of the most popular stimulants in the world and is most commonly consumed with coffee. People rely on caffeine to wake up in the morning and stay energized throughout the day, but too much caffeine can keep you awake even when you’re ready to go to sleep.
key to this undesirable effect is a byproduct of neuron activity in the brain. adenosine called compound. Receptors in our nervous system constantly monitor adenosine levels, and the body prepares itself for sleep when it drops below a certain level in the brain and spinal cord. Caffeine seeks out certain adenosine receptors and mimics the effects of adenosine, tricking the body into thinking it’s time to sleep.
How long a dose of caffeine affects the body can vary based on a number of factors, including tolerance, genetics, and physical health. however, in most cases, the effects last for about five or six hours. Long-time coffee drinkers may tolerate caffeine, requiring them to consume increased amounts to achieve the same stimulating effect. If they stop drinking coffee, they may experience withdrawal symptoms such as headaches, irritability, and nausea.
In order to prevent caffeine-related sleep problems, it is recommended to limit caffeine consumption to four cups of coffee a day and to consume the last cup in the afternoon at the latest. Switching to decaffeinated coffee or decaffeinated tea may also help. According to the American Academy of Pediatrics, children and adolescents should avoid heavy caffeine consumption.