20 Ways to Prevent Colds, Flu, and Fortify the Immune System

LOSE THE BOOZE “When I’m on trips, I don’t drink alcohol. It interferes with sleep quality, and I’m much more likely to get sick when I’m sleep-deprived. I’ve also read that nightcaps disrupt REM sleep, which is the most restorative part of sleep.” —Kim Mazzolini, a flight attendant with Alaska Airlines SIP TEA “I drink…