I eat, drink junk and im lazy but I still get fitter, more toned, stronger and faster and I still feel as if im getting healthier whats going on?

No matter what i eat or what i do i still get fitter, more toned, stronger and faster and i still feel as if im getting healthier as i said, i notice that this started from when i was 14. i have started feel great. i eat nothing but junk food and drink softdrink and water. i also sit around all day and do nothing so whats going on with me my science teacher can't explain it and i would like answers.
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+1 y
im 17 going on 18 but like yeh i understand puberty and shit but when you said im not healthy on the inside, im fine like, i feel great i dont get sick i dont feel as if there's anything going on that i should be concerned about, and mr springer also agrees that puberty isn't playing a part anymore it should have slowed down prior to all this shit happening
I eat, drink junk and im lazy but I still get fitter, more toned, stronger and faster and I still feel as if im getting healthier whats going on?
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