Britt Hertz says yes to everything a 10-year-old asks for, resulting in the wildest workout yet.

According to the CDC, adults should include two days of muscle-strengthening activities in their weekly routines. A busy ...

Dumbbells are an effective way to add resistance to biceps, triceps ... try to do two to three sets of 10 to 15 repetitions for each of the following exercises. Once 15 reps of a particular ...