Celebrity personal trainer Daniel McKenna says pull-ups are "empowering." He explains how to go from a pull-up zero to hero.

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Olympic Gold Medalist Swimmer Missy Franklin Is Raising Awareness About Genetic Diseases
Five-time Olympic gold medal swimmer Missy Franklin was at the top of her sport when a shoulder injury forced her to retire. After that, her father was diagnosed with a rare kidney disease that forced her family to come together to support him. Now Franklin is working with Otsuka Pharmaceutical to raise awareness of genetic diseases and ADPKD, the disease that affected her father.
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