Taking away a patient's power to consent and giving it to medical personnel or the government is called medical paternalism.
World War I & World War II
The answer is that polluted Water can transmit all of those diseases.
There are two mechanisms responsible for these cardiovascular responses during exercise: the exercise pressor reflex, which is a reflex originating in contracting skeletal muscles, and central command, which refers to a parallel output (corollary discharge) from cortical areas involved in generating the motor command to cardiovascular control areas in the brain