You can try at least a few of these strategies to knock a whole decade off of your outlook and feel ten years younger:

  1. Laugh. A hearty chuckle sends your blood pressure downward, unkinks your muscles, and may even lower your stress hormone levels. Researchers have also found that laughter triggers pleasure centers in the brain. 
  2. Sleep. There are only so many hours in a day, and some of them need to be earmarked for rest. Skimp on sleep and you'll not only look haggard, you'll feel old and cranky. Set a bedtime and stick to it.
  3. Have sex. So what if you're too old to procreate? Numerous experts have touted sex as a way to reduce stress, boost immunity, and burn calories.
  4. Move more. Put down the remote and put on your sneakers: Physical activity is a known mood booster. It stimulates brain chemicals that relax you and make you feel happy, and it gives you the energy to do the things you enjoy.
  5. Eat well. A heavy diet of processed foods, trans fats, and sugar can leave you feeling old before your time. Instead, focus on proper nutrition. The American Heart Association recommends at least five fruits and veggies a day, a variety of grains, reduced-fat dairy, lean protein, and fatty fish at least twice a week.
  6. Learn something new. Keeping your brain stimulated prevents stagnation and rejuvenates you. Past college age? No matter. Take a course in something that interests you. It's never too late to learn to knit, study a foreign language, or master the intricacies of chess. Or keep your neurons challenged by doing crossword puzzles and reading (or rereading) the classics.
  7. Be diligent about sunscreen. You'll feel younger if you look younger, and shielding yourself from the sun's ravages is a step in the right direction. Don't leave the house without wearing sunscreen-even in winter-and don a wide-brimmed hat if you'll be spending significant time outdoors.
  8. Adopt a pet. Pets are great for your health. Taking your pooch for a brisk daily walk will do wonders for your spirits. Sitting with a quiet cat in your lap can lower blood pressure, reduce stress, and increase feelings of peace.
  9. Drink water. Dehydration can make you feel sluggish. Aim for eight glasses a day. If plain water is too boring, feel free to add lemon, lime, or even a few cucumber slices for a tasty alternative.
  10. Strength train. Weights and dumbbells are not just for twentysomethings. Lifting weights builds bone, increases muscle mass, and burns calories. Studies show that older adults who strength train see improvements in their self-esteem and self-confidence.

Sources:
Centers for Disease Control and Prevention
http://www.cdc.gov/

American Heart Association
http://www.americanheart.org/

The Substance Abuse and Mental Health Services Administration
http://family.samhsa.gov/

American Academy of Dermatology
http://www.aad.org/