In a new book The Longevity Bible Dr Garry Small together with Gigi Vorgan explain a few ways of living longer: 

Essential 1: Sharpen Your Mind Mental Aerobics cross train your brain to significantly improve memory skills and brain efficiency. If you fix your brain for longevity, your body will follow in kind. Essential 2: Maintain a Positive Outlook  Positive Thinking boosts the body’s immune system, which is why optimists have fewer physical and emotional difficulties, less pain and higher energy levels. Essential 3: Cultivate Healthy and Intimate RelationshipsSocially Connected people survive up to 20 percent longer. A healthy sex life at every age helps lower blood pressure, reduce stress and depression, boost the immune system, and extend life expectancy.Essential 4: Promote Stress-Free LivingStress is among the leading causes of age-related disease, and your ability to adopt Stress Busters will not only help you feel and look better, but also live longer.Essential 5: Master Your EnvironmentWhether it’s traffic, smoke, clutter, noise, mold, smog, or information over-load, quality longevity depends upon your ability to adapt to and control your environmental influences.Essential 6: Shape up to Stay YoungThe Longevity Fitness Routine combines cardiovascular conditioning, balance and flexibility, and strength training to maximize health, boost energy levels, and prevent age-related diseases.Essential 7: The Longevity DietEat all of your favourite foods—including desserts— and break free of today’s fashionable diets by learning to eat delicious and healthy foods in realistic portions, while feeling anything but deprived.Essential 8: Modern Medicine to Look and Feel YoungerFrom smart drugs to Botox to microscopic lasers, the Longevity Bible reveals the latest in medicines and treatments to keep you looking and feeling young.