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.
Answer:
not entirely certain but a possible answer could be "trephination"
Explanation:
people used to cut holes in people's heads to relieve them from mental illness. also called skull drilling.
ATP DEFINITELY.
Explanation:
In anaerobic respiration like glycolysis, ATP is needed to split glucose
in the aerobic respiration, same thing. Krebs cycle needs transporters to make ADP and convert it into ATP.
