Earth's Seasons

Whether you catch a cold this winter or make it through the season scot-free may depend in part on how many "stressors" your nose and airway passages encounter.

Here's what you should know about sleeping with a fan on at night.

Could toxic algae have killed this young whale shark?

This isn't due to any fault of the product, but rather to the way people apply sunscreen.

These exhausted flyers are running out of time.

Be careful where you leave your water bottles this summer.

Beach sand can harbor a number of bacteria, parasites and fungi that are linked with diseases.

Chlorine helps keep us safe from an otherwise bacteria-filled soup of pool water and pee. But should we fear the chemical itself?