Cranial and spinal nerves are part of the system.
a. circulatory
b. urinary
c. central nervous
d. peripheral nervous

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

Describe how the above factors create barriers for maintaining your mental and emotional health what barriers do they create

What is the hormone in your brain that makes you feel happy?