"Springing forward" affects early birds less than night owls, study finds
Every spring, the Daylight Saving Time shift robs people of an hour of sleep - and a new study shows that DNA plays a role in how much the "spring forward" time change affects individuals.
People whose genetic profile makes them more likely to be "early birds" the rest of the year can adjust to the time change in a few days, the study shows. But those who tend to be "night owls" could take more than a week to get back on track with sleep schedule, according to new data published in Scientific Reports by a team from the University of Michigan.
The study uses data from continuous sleep tracking ...











