Scientists say the return to "standard time" is good for our health. But the time change can be disruptive and we must also adjust to more winter darkness. Syncing our habits to our body clock helps.

A new AP-NORC poll finds that only 12% of U.S. adults support the current system of daylight saving time, which has people in most states changing the clocks twice a year, while 47% are opposed and 40% are neutral.