Which of the following is not a reason why communicable diseases, such as pneumonia, kill fewer people today than they did in the past? a. continuing medical advances b. slower population growth c. improved living conditions d. better preventive treatment select the best answer from the choices provided.

B is going to be the answer here. Population growth has almost no affect on effectiveness on treating diseases, while every other answer option does apply toward the modern much healthier society.

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.