Eat a balanced diet with plenty of fresh fruits, vegetables, legumes, and whole grains. Wash fruits and vegetables carefully; they may have come from a country where pesticide and sanitation laws are lax.
Use unsaturated oils, such as olive or canola, rather than hydrogenated or semisolid fats, such as margarine.
Cook meats and other foods at temperatures high enough to kill pathogens; clean utensils and cutting surfaces; store food properly.
Wash your hands frequently. You transfer more germs from hand to mouth than any other means of transmission.
When you have a cold or flu, don’t demand antibiotics from your doctor — they aren’t effective against viruses.
If you’re taking antibiotics, continue for the entire time prescribed quitting as soon as you feel well is an ideal way to select for antibiotic-resistant germs.
Practice safe sex.
Don’t smoke; avoid smoky places.
If you drink, do so in moderation. Never drive when your reflexes or judgment are impaired.
Exercise regularly: walk, swim, jog, dance, garden. Do something you enjoy that burns calories and maintains flexibility.
Get enough sleep.
Make a list of friends and family who make you feel more alive and happy. Spend time with one of them at least once a week.