LAGUNA NIGUEL, Calif. (KABC) -- These people are talking about a new class called FIRE. "It's such a great, explosive workout. You get everything fit in an hour," said Melanie Reed of Laguna Niguel.

I approach treadmills with trepidation. I hate running and associate treadmills with the feeling of wanting to die — but I loved this interval workout. Photo credit: HIKEology I don’t run. My two ...

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