Iceland
Iceland topped the list of the world's healthiest countries, which Glenville attributes to its government's strict environmental regulations and supply of fresh fish.
Don't smoke.
Enjoy physical and mental activities every day.
Eat a healthy diet rich in whole grains, vegetables, and fruits.
Take a daily multivitamin, and be sure to get enough calcium and vitamin D.
Maintain a healthy weight and body shape.
Challenge your mind. Keep learning and trying new activities.
Floss, brush, and see a dentist regularly.