You've done hot girl walks, but have you tried hot girl power walks? That's right—your grandma's walking crew is onto something. Don’t get it twisted: Power walking is a very real cardio challenge ...

Only 24.2% of American adults meet the required Physical Activity Guidelines for both aerobic and muscle-strengthening activity. These guidelines recommend that, in a week, adults need: Staying fit ...

Rest day or a light cardio day. Do 10 minutes each on the rowing machine, bike and elliptical cross trainer. Do intervals on ...