Caffeine is worse than you thought. In addition to increasing your alertness, leaving you too jazzed up to drift off at bedtime, it also delays your circadian clock, the internal timekeeper that tells you when it’s time to fall asleep and time to wake up, according to new research in Science Translational Medicine. The effects are worse when combined with TV or laptop use. When study participants were given a double espresso three hours before their usual bedtime and exposed to low-light conditions, there was a roughly 40-minute delay in their nightly circadian rhythm compared with those who didn’t get the caffeine; when they were given that double espresso and then exposed to three hours of bright lights, there was a 105-minute delay.
Thursday, March 17, 2016
'I Cant Sleep', 3 Ways to End Sleep Procrastination
Caffeine is worse than you thought. In addition to increasing your alertness, leaving you too jazzed up to drift off at bedtime, it also delays your circadian clock, the internal timekeeper that tells you when it’s time to fall asleep and time to wake up, according to new research in Science Translational Medicine. The effects are worse when combined with TV or laptop use. When study participants were given a double espresso three hours before their usual bedtime and exposed to low-light conditions, there was a roughly 40-minute delay in their nightly circadian rhythm compared with those who didn’t get the caffeine; when they were given that double espresso and then exposed to three hours of bright lights, there was a 105-minute delay.
