Cold & Flu Prevention Center

30-Day Cold- and Flu-Prevention Calendar

Achoo! Follow these tips to boost your chance of staying healthy during cold and flu season—or at least minimizing your downtime if you don’t.
smile-woman-breast-cancer
(ISTOCKPHOTO)
prev Day 7 next

Smile!

It sounds too good to be true, but happiness may help you stay healthy. Carl Charnetski, MD, professor of psychology at Wilkes University, in Wilkes-Barre, Pa., found that pleasurable activities such as sex, positive thinking, playing with a pet, and other behaviors seem to boost the immune system. And other studies have shown that simply smiling more—even if you don't really feel like it—can boost your mood.