How many hours of sleep do most adults need each night?
a. 7 to 8 hours
b. approximately 5 hours
c. it depends on the individual s sleep patterns
d. 4 to 6 hours

The answer is letter A.

It is not true when they say that when you are older you need less sleep. Adults like children still need 7 to 8 hours of complete sleep in order to feel rejuvenated for the next day. Getting enough sleep helps the body to recover and to heal itself well in preparation for the next challenging activities it needs to face. Studies have shown that people who sleep 7 to 8 hours a week tend to be more happy, fulfilled, and alive. 

Dbecause it isn't always an athlete, breathing techniques don't have to be advanced, and consistent intensity won't make it go down or stay the same