Both staying up past your bedtime for a Saturday night out and staying in bed late on a Sunday morning can wreck havoc on your sleep. Throwing off your bedtime and wake up schedule even by just an hour disrupts the body’s natural clock
, called circadian rhythms.
Researchers have given a name to this practice of adopting different sleep habits for the weekdays and the weekends: “social jet lag.” If you’re guilty of this practice, come Monday morning, you’ll likely feel as if you’re adjusting to a different time zone. Social jet lag has been linked to higher body mass index, and may also raise risk of obesity or diabetes, like shift work has been shown to, Health.com reported. As much as possible, set a sleep and wake schedule that works for you — seven days a week.