fitness rputines

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a gray cat sitting on top of a window sill next to a sign that says they
Use the "two rep rule" to know how heavy you should be lifting.
an image of a woman doing exercises with dumbbells for the arm - sculpting challenge
Strengthen Your Arms and Shoulders With This 3-Week Dumbbell Challenge
After following this 21-day arm plan, not only will your arms look toned — you'll also be stronger.