Catching up on sleep over the weekend? You are at greater risk of heart disease

Do you oversleep on weekends to balance your sleep deprivation over the week? This ‘social jet lag’ might put you at risk of heart disease, fatigue and increased sleepiness, says a new study.

So many things to do, so little time. For all those who pack in all they can over weekdays at the cost of sleep, take heed. You are more likely to experience ‘social jet lag,’ which is associated with the increased risk of heart disease, researchers warned.

The findings showed that each hour of social jet lag — which occurs when one goes to bed and wakes up much later on weekends than during the week — is associated with an 11% increase in the likelihood of heart disease. Social jet lag also leads to poorer health, worse mood, as well as increased sleepiness and fatigue.

“These results indicate that sleep regularity, beyond sleep duration alone, plays a significant role in our health,” said lead author Sierra B Forbush, research assistant from the University of Arizona in the US. “This suggests that a regular sleep schedule may be an effective, relatively simple, and inexpensive preventative treatment for heart disease as well as many other health problems,” Forbush added.

Social jet lag was assessed using the sleep timing questionnaire and was calculated by subtracting weekday from weekend sleep midpoint. Overall health was self-reported using a standardised scale, and survey questions also assessed sleep duration, insomnia, cardiovascular disease, fatigue, and sleepiness.

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