Common Routines That Quietly Disrupt Your Body's Internal Clock
Many ordinary daily routines can slowly and quietly interfere with the body's internal clock, also known as the circadian rhythm. According to Dr B K Madhusudhan, Lead Consultant - Neurology at Aster RV Hospital in Bangalore, one of the most common culprits is maintaining an inconsistent sleep schedule. When bedtime and wake-up times vary significantly between weekdays and weekends, the body's natural rhythm becomes confused, leading to poor sleep quality and daytime fatigue.
The Impact of Late-Night Screen Use
Using smartphones, tablets, and other bright screens late at night can mute the production of melatonin, the hormone that signals the body to prepare for sleep. This suppression pushes sleep onset further away than it should be, making it harder to fall asleep and reducing overall sleep duration. Dr Madhusudhan emphasizes that the blue light emitted by these devices is particularly disruptive.
Caffeine, Nicotine, and Heavy Meals
Consuming caffeine or nicotine close to bedtime can directly impair sleep quality. Caffeine, a stimulant, can remain in the system for hours, while nicotine also has stimulating effects. Eating heavy meals right before bed can cause discomfort and indigestion, further interfering with the ability to fall and stay asleep. These factors collectively contribute to a disrupted internal clock and chronic sleep issues.
Dr Madhusudhan advises maintaining a consistent sleep-wake schedule, reducing screen time at least an hour before bed, and avoiding stimulants and heavy meals in the evening to support healthy circadian function.
