Just think how many people live in the tropics either side of the equator (nearly half the earth's total population) and how many live in the polar regions (about 3 scientists!).
People obviously prefer hot places to cold places.
(OK, I admit it, I made up the number of scientists. 97% of all statistics are made up.)
It reaches a boiling point 2 minutes after it hits the sidewalk.
assuming that you aren't stranded for days in a hot desert without water and shade your body will keep your blood around the same temperature. it's one of the advantages of being a mammal.
Nothing. I live in Philippines, and before that seven years in Kuwait the hottest city on earth.
If you don't keep your fluids up your blood pressure will rise