Heat Gain Md. Saifur Rahman Heat is gained by metabolism. Without loss of heat normal metabolismwould increase the body temperature by 10C every hour. To a lesserextent, heat is gained from a hot environment and from eating hot foodand drinks.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?