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Many people may not know what a hemisphere, or speedball, is. It looks like a strange half of a "Yoga ball".
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nowadays, life is becoming more and more colourful in terms of entertainment. After we finish our daily routine, most of us spend the rest of the night with our mobile phones in our arms.
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how many pull-ups can you do in one set, 10, 20 or 50? How many can you do if you only do pull-ups in one set, 100, 300 or 500?
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The state of health and fitness is similar, in the sense that everyone knows a little bit about it, but everyone doesn't know much about it. But also similar to the health point is that there are many people who have entered the ranks of the fitness family.
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in today's society, big bellies can be seen everywhere. Women's swimming rings are particularly harsh, no matter how big the size of the clothes can not cover the pile of fat on the stomach.
