Increase your water intake. Regular exercise (5 times per week, 30-45 minutes). Get plenty of good quality sleep. Maintain a balanced diet of good carbohydrates (fruits, veggies, grains, and legumes), good fats, and protein. Take nutritional supplements targeted to your specific needs as well as eliminate fast foods and saturated fats. Wash your hands frequently and practice "Good Hygiene." De-stress your mind and body with yoga, meditation or spiritual practices. Detoxify your system and take an antioxidant. Have fun laugh every day. Humor is good medicine. Develop positive personal and professional relationships.