If matter can only change form through physical and chemical changes, where does all the matter we get rid of when losing weight end up in?
In: 65
You breathe it out and you work it off…
When you do physical activity your muscles burn energy, literally “burn”… your body temperature rises, you start to sweat and evaporation takes that heat away…
Warm blooded creatures are literally slow burners, you take in fuel, convert it to long chain molecules which your cells can use as energy (ATP) and they burn it to function
Similar thing happen when you burn fat or your own muscle mass when you starve
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