Night owls are more likely to have stiff arteries than early birds — Here's why

Compared to early birds, night owls are more likely to have hardened arteries, which are a result of fatty deposits building up in the blood vessels and raising the risk of a heart attack or stroke.

In order to determine whether the disease was more common in night owls—people who often wake up later, go to bed later, and exhibit greater energy in the afternoon and evening—researchers examined 771 individuals, ages 50 to 64.

They discovered that those who identified as night owls were 90% more likely than early risers to have calcified arteries.

About 17% of respondents identify as night owls "definitely," excluding those who describe their nocturnal tendencies as "to some degree."

Research indicates that being a night owl could go against our innate circadian rhythm, as opposed to humans' tendency to be very active during the day.

This temporal discrepancy has been connected to inflammation and elevated blood pressure, both of which can harm and stiffen the arteries.

The hardness is caused by fatty deposits that might burst and form blood clots, which can result in strokes and heart attacks.