This is false because that is what antibiotics are made for
One statement about rest and physical that is not true is Matt capps
Larry is taking a walk in the park. The pollen in the air makes him sneeze constantly. The line of defense that is his immune system exhibiting is that of "(A) first line of defense." There are only 3 lines of defense in the immune system. The first line of defense are a combination of physical and chemical barriers that prevent all types of foreign agents from penetrating the outer layer of the body. In this case, it is the nasal cavity.
A skill related is fitness including training to improve speed, balance, coordination, power, and finally reaction time.
Hope this helps...