5/15. Improved Metabolism
Believe it or not, planks burn more calories than the traditional bodyweight abs exercises. How? The muscles that it recruits keep burning even while you sleep. Additionally, doing planks every day is particularly beneficial to people who lead sedentary lifestyles. You can do it while you read, watch TV, etc. so that you can keep your metabolism up all day and burn calories.
6/15. Neck Support
In addition to providing back and spine support, doing planks every day strengthens the muscle groups which are responsible for supporting your neck. More so, planks can rid your neck of pain while significantly reducing your chances of developing neck pain the future.