A human body is negatively affected if the weather is extreme hot or extreme cold. The rate at which the Hotness and coldness are measured refers to the temperature. Extremely hot conditions come when the temperature is high and it can cause the sun burns, heat stroke, etc., on a human body and there can be mood variations also. Extreme cold condition comes when the temperature is low and it can lower down the rate of the pulse and heartbeat. The other condition which can affect a human body is if there are cold winds or hot winds.