Being physically fit makes you happier. The more happy you are, the better interaction you will have.
Because children start out with the brain and the cells that they initially had. One thing that does not change is the personality you have a personality from the day you are born. The personality is the way you are when you are born and cells create your body and your mind. This is stable because it is like your chromosomes predetermined and does not change.
Hope this helps!
The hepatitis one...I think. if you know for sure I an wrong then it's definitely the first one about HIV
Answer:
Subtract your age from 220 to get your maximum heart rate. Calculate your resting heart rate by counting how many times your heart beats per minute when you are at rest, such as first thing in the morning.