I am positive that: Financial Analyst, and Treasurer. Is the answer sorry if it’s wrong:(
This varies from person to person. There is a point in time at which hormones in a persons body begin to loose their effective functions, a period I have heard reffered to as adult puberty. In women this is marked by menopause. While you can still theoretically maintain a healthy body at this time, it becomes increasingly difficult. Maintaining a healthy diet and constant exercise are essential to achieving this. A doctor won't tell you much more than this.
increased metabolic rate and heart rate
Muscular strength and endurance go hand in hand. If you have muscular strength you can endure the weight of many heavy objects. It's impact is, it helps to make your bones strong and less frail, injuries are also prevented by a bit people who are fragile tend to get more injuries than people who workout.
