It's not that the body is resistant, it's that the body acclimates to the change. Sort of like if you move from the country into the city, you'll be awake when you hear sirens. Then after time passes, your brain grows to accept the noise as "normal", and those sirens stop waking you up.
meanmuggle t1_j0y11xw wrote
Reply to Does the human body adapt and become more resistant to cold weather at the end of a winter season compared to the beginning? by amahl_farouk
It's not that the body is resistant, it's that the body acclimates to the change. Sort of like if you move from the country into the city, you'll be awake when you hear sirens. Then after time passes, your brain grows to accept the noise as "normal", and those sirens stop waking you up.