Don't wait until you past 40 years old to take care of your health. Starts now.

Physical exercise becomes more important to fight against aging. Especially core exercises to take care of your back.

Watch your diet and eat well because it's so much harder to lose weight when you are older. Not to mention your innards are deteriorating fast if you abuse them.

Contact sports or extreme sports has super high cost when you are older. Imagine breaking your wrist playing snowboard and you have to be out of work for multiple months, unable to make a living by typing, etc.