Walking, you tend not to move alot
Arrector pili muscle is the one with hair follicles that has a smooth muscle which is in an unconscious control rather than conscious control. This pull up the follicle causing the goose bumps then. Hope this is the right answer and will be of big help then.
Parents should let them be curious and take adventures but limit them to a certain amount or how far they can go a day.
Strep throat is and example of an acute illness which can be treated with antibiotics
This is an example of the yo-yo diet.
I hoped this helped!