8 Secrets of people who never get sick – See this now!

Be a gym rat

Regular exercise strengthens the immune system and makes you less likely to catch upper respiratory infections, according to a study in the Journal of Sport and Health Science. “My husband and I work out at least three times a week, and we’ve been working with a personal trainer for a number of years,” says Julie Michener, from Minneapolis. “I think that’s why I don’t get sick even when everyone else in my office does.”