Why team USA athletes have been 'spotted' with cupping marks

Several Team USA athletes have been spotted (literally) with round purple or red marks. An acupuncturist says these are the telltale signs of an ancient Chinese medicine practice called cupping. She explains why elite athletes may find it useful.
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Several Team USA athletes have been spotted (literally) with round purple or red marks. An acupuncturist says these are the telltale signs of an ancient Chinese medicine practice called cupping. She explains why elite athletes may find it useful.

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