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Hi All I'm 55 years old and have been doing Cathe for at least 25 years. I'd consider myself a rather advanced (for a 55-year-old) exerciser, and I try to lift pretty heavy, generally. I've also taken appropriate calcium forever. I just found out that I have severe osteoporosis (-3.7 spine, -2.6...

This may be a very dumb question. Do I need to download an app if I just want to stream it on my computer? I can use an HDMI cord to hook my computer up to my TV.

Hello all (apologizes if this is in the wrong forum!) My husband is a marathoner. Since January, he has been doing Cathe's Tabatacise once a week. Now that he is training, he has started incorporating the Tabata technique in his short runs. He was wondering how many times a week he should do...