heat production by living organisms

Heat production was a feature of burning glucose or sugar as you observed earlier.living animals and plants usually produce energy in the form of heat.
We feel warm when we wear sweater in winter season.we know that sweater prevents loss of heat energy produced by the body.
Heat is constantly lost from the body surface thus it must be continuously generated within our bodies to replace what has been lost to keep the body temperature constant.
During cellular respiration energy is released.some part of energy is Stored in the form of ATP.some part of energy is utilised in our day to day life activities.And the excess amount of energy is released in the form of heat.but in case of vigorous exercise muscles start anaerobic respiration. hence, lactic acid is formed.we know that accumulation of lactic acid causes pain in muscle.we reach normal position after some rest.deep breathing helps us to restore energy in our body.refer in annexure about yoga asanas.
 

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