Answer: Usually age unless its level of fitness but that's kind of vague
Explanation:
So I would say age in moderation because if you have like a 20 year old and a 17 year old doing exercise I don't think there will be a big heat exertion illness getting them down but if your health teachers annoying and is talking about a 18 year old exercising with an 87 year old than its definitely level of fitness
Answer:
Da Vinci
Explanation:
Albert Einstein was a physicist and did not make any progress in understanding the human body. He did instead make remarkable progress in physics.
Newton, like Einstein, didn't work with the human body but with math and he did his progress for science in math and physics.
Charles Darwin was responsible for the theory of evolution and natural selection and didn't make any progress when we are talking about human bodies.
In my opinion, you should not let your feelings get in the way. For example, if a customer is being rude, don't let it get to you. oooo another ting is, remember that paycheck ;) once that money comes in, you'll be very happy :) hope this helped, have an amazing day :)
