The days are getting shorter, darker and colder, at least in the Northern Hemisphere. And while there's a lot to look forward to in winter, it's not necessarily the most wonderful time of the year for ...

Add Yahoo as a preferred source to see more of our stories on Google. ‘When you’re getting less daylight in the winter months, that affects your serotonin levels, which then causes you to have a lower ...

While fall brings crisp, cool air and changing leaves, it also means a dip in the length of sunlight we see each day. As the daylight shortens, around 5 percent of U.S. adults begin to experience ...

Daylight saving time ends on Sunday, Nov. 3. That means clocks in most of North America will go back one hour, and it will be dark outside when most people in the Northeast get home from work. Yale ...