(hope this helps)
middle-distance running, in athletics (track and field), races that range in distance from 800 metres (roughly one-half mile) to 3,000 metres (almost 2 miles).
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Human subject research is systematic, scientific investigation that can be either interventional (a "trial") or observational (no "test and Human subject research can be either medical (clinical) research or non-medical (e.g., social science) research.
Answer:
Arteries are blood vessels that carry oxygen-rich blood to your heart and other parts of your body. Plaque is made up of fat, cholesterol, calcium. Over time, plaque hardens and narrows your arteries causing cardiovascular diseases like stroke and heart attack.
