Feeling tired the Monday after the Super Bowl? You’re not alone.

It's around this time every year when some start to wonder if the Monday after the Super Bowl should be a national holiday. Some are “not feeling well” and others just can't drag themselves out of bed after the Kansas City Chiefs and San Francisco 49ers dueled it out into overtime Sunday night.

According to a study from UKG Workforce Institute, about 16 million people plan to call out sick from work the day after Super Bowl Sunday. And millions more plan to show up late.

The study says cases of “Super Bowl Flu” emerge annually across the U.S., with an estimated 14.5 million employed adults in the country admitting they’ve called in sick to work when they weren’t really sick. This includes over 1 in 10 people who are managers (11%).