Is heart disease an inevitable part of growing older? why or why not? what steps should we all take every day to increase our heart health?

⇒ Heart disease in not an inevitable part of growing older. Usually you develop heart disease between the age of 40-55. If you reach the age of 50 without developing the major risk factors for heart disease, you can live a full life without it, and your chances of dying from heart disease decrease from 50 percent to a strikingly low 8 percent. Here are some everyday tasks everyone can use and/or take to prevent heart disease:
1.) Don't use tobacco products. 
2.) Exercise for 30 minutes 3-4 times a week. 
3.) Eat a heart-healthy diet/meal.
4.) Maintain a healthy weight.
5.) Get regular health screenings.
6.) Try to manage stress.

I hope that this helps you out. I am very good with heath and doctor questions and problems. I study this kind of stuff everyday. Good Luck!

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle

D. contract and relax