There's a reason why the National Highway Traffic Safety Administration warns drivers to stay safe on the roads every Thanksgiving: this day may be the most deadly holiday of the year. Residents of California should also know that it's a fatal day for many with heart conditions.
Night shift work is an unavoidable part of some California industries. In fact, more than 9.5 million people across the U.S. work a night or rotational shift. Studies have shown, though, that disrupting the sleep-wake cycle in this way leads to serious problems like heart disease and type 2 diabetes. It also leads to drowsy driving.