Excited for 6 hours with a cup of coffee, it is easy to shorten the time of sleep disorder at night.

According to the Daily Mail of November 15, the stimulating effect of caffeine can last for six hours, a new study has found. Drinking coffee after 5pm can easily lead to an hour less sleep at night. Because the coffee drinking time is late, it is easy to lead to night sleep disorders, shortened sleep time and sleep quality at home.

In the new study, Christopher, a professor of psychiatry at Wayne State University. Drake and his colleagues studied the sleep habits of 12 participants, giving them 400 milligrams of caffeine (the equivalent of 2 to 3 cups of coffee). During the four-day trial, participants took caffeine tablets, including a placebo, six hours before bed, three hours before going to bed and before turning off the lights. It turns out that drinking a large cup of espresso after 5pm can lead to sleeplessness at night and drowsiness during the day, and even drinking two or three cups of coffee six hours before going to bed can lead to an hour less sleep.

Professor Drake pointed out that many people know that drinking coffee before going to bed can make it hard to fall asleep, but little is known about the fact that drinking coffee in the afternoon can also lead to sleep disorders at night.

Safwan, an expert at the American Society of Sleep Medicine. Dr. Badrel said sleep experts have long suspected that caffeine intake may interfere with sleep for a long time, and the new study provides objective evidence for the sleep experts' hypothesis. it also further supports the health advice that not eating caffeinated drinks in the afternoon and evening is more beneficial to sleep.