1. Don't beg your doctor for antibiotics when you have a cold.
Antibiotics kill bacteria;since colds are viral, antibiotics don't affect them.
2. Keep germs at bay.
Don't let your gym workout land you in bed with the fl u. Exercise equipment can harbor bacteria and viruses, so wipe down machines before and after use (most gyms supply spray cleaners), and wash your hands thoroughly with soap and warm water before you head home.
3. Avoid the beige diet.
A colorful variety of fruits and vegetables ensures you get your fill of powerful disease-fighting antioxidants.