Some of the most common disaster health issues include water and sanitation, communicable diseases, dysfunctional health facilities, mental health problems, and population displacement.
I think the answer is “Nuts”...... but I’m not fully sure.
I think one thing you could do in order to measure your cardiovascular strength you can do a full sprint run. In order to help improve your fitness levels you can swim, jog/run, body weight exercises, and a balanced diet.