Brush your teeth twice a day with an electric toothbrush. Use a non-fluoride natural toothpaste. Speak to your dentist about using composite fillings and porcelain crowns and bridges. See a periodontist for scaling and root-planing, but try to avoid periodontal surgery. Rinse your nose with lukewarm slightly-salty water every day.
Organic clothing is ideal.
Use a high-quality foam mattress and pillow. Protect yourself from excess sun exposure. Wear sunglasses and a hat outdoors. Stretch gently, breathe deeply, take leisurely walks and short naps. Find an aerobic activity you enjoy and can do regularly without pain.