Gain and loss of heat to and from surroundings

• Convection - heat is taken away by breeze, air currents, constant flow of cold air for example
• Radiation - we all radiate a certain amount of heat if someone is hot we can put our hands near them and feel the heat like a fire.
• Conduction - lose heat quicker if touch something cold especially water.
• Evapouration - perspiration/sweating

Hypothermia - abnormally low body temperature

Hyperthermia - abnormally high body temperature