It is important that you get regular exercise at least 3 times a week. This should include aerobic exercise that increases your heart rate. Getting enough rest is also important to a healthy lifestyle. Go to bed early and get up early and do your exercise before breakfast. Most adults need 7 to 8 hours of sleep to function at their best. A healthy diet is essential to good health and should include at least 5 servings of fruits and vegetables each day.