This is true. Endorphin's are released during exercise and cause a euphoric feeling.
It's true cause a child has an developing immune system whereas adults have that already developed so the children under development are more likely to have those problems.
The form of cancer that affects the tissues that produce blood is called leukemia.
Answer:
Human sense organs are the eyes, ears, nose, mouth, and skin—each having its own particular type of receptors. Sense organs are essential if an animal is to obtain any information about its surroundings. Without them, the individual organism would probably not survive long
