The main big one would be disease and infections. Trench fever, trench foot and trench mouth were common diseases people got when involved in trench warfare. Trench foot happens when the feet are exposed for long periods of time to cold water and mud. Trench fever is caused when body ice transfers from one place to another. Overcrowding conditions make this prone to happen. It causes headaches, sore muscles, skin lesions on the chest and backs as well as fever.
I hope this helps :)
Smiling .. just makes people happier because smiling is a happy thin so u can start thinking happy and then it makes you happier ?? Idk that’s a guess
Explanation:
My dad has been pretty good thank.yoir for asking! I'm going to gts soon. How has your day been
Having an equal net income and outcome would result in a lack of profit thus making it attainable but not desireable