Autumn is especially difficult because temperatures can shift a lot in a single day.

Add Yahoo as a preferred source to see more of our stories on Google. New York City pictured last fall. Experts say the season's temperature shifts and other factors can contribute to a rise in ...

These expert-approved tips make a big difference.

While most of us associate fall with football, pumpkin spice lattes, and cooler weather, fall can also be a strange season for runners, full of extremes, ranging from early-season snowfall in the ...