Stress has been found to make people go crazy mentally and physically. It can also cause numerous health problems. Stress is a sickness so to speak.
False. Airborne illness is contracted by breathing in something that carries a sickness, like a cough or a sneeze.
Here Is a picture of the human life cycle.
Well I think it smells because of the plaque on it, and a good way to clean in between your teeth is a water pic.