The answer is evolutionary!
I hope I was able to help. :)
Answer:
Diaphragmatic breathing requires contraction of the diaphragm and is also called deep breathing. Costal breathing requires contraction of the intercostal muscles and is also called shallow breathing.
Listening is an important skill for a leader because a leader has to know how to understand the needs and wants of the group. If a leader doesn’t listen then that leader is failing to represent the group.
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.
