A new study has tracked sleep patterns at all ages, finding that Americans stay up late in their 20s, get the least sleep around age 40, and get the most after they’ve retired from work and/or the kids have flown the nest.
The findings were based on more than 11,000 Americans aged 6 and up who took part in a periodic health study between 2011 and 2014. Participants wore devices on their wrists that recorded movement, day and night, for seven days.
Reasons for the findings may be that teens and young adults operate on a rhythm that allows them to stay up later during the week, while also staying up later to be on social media or going out. The research shows they sleep in later on weekends….