Our mitochondria process the total of our energy needs every day, while exercise adds, percentagewise, only fractional additional energy need.

do you think mitochondria notice the difference? I don't.

If I cut my caloric intake, I drop weight like nobody's business, and that's all thanks to my mitochondria at their place in the chain. It's the same thing my mitochondria are doing when I overeat and put on weight.

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esailija 3 hours ago | parent [-]

If you live paycheck to paycheck and then get a 25% salary increase, if everything else stays the same, in a year you have already saved 300% worth of your original salary vs 0%.

That is even with your unwarranted assumption that all energy use is the same and doesn't cause different adaptations. This kind of simplicity is just not happening in biology.

	▲	Tarq0n a few seconds ago \| parent [-]
		Exactly, this is called a marginal effect and it's very relevant for our bodies which basically need their homeostasis disrupted to be prompted to adapt.