Skip the gym. These 9 at-home moves help women 40+ tone crepey arms and build firmer, more defined upper-body muscle fast.

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You don't need sit-ups to build a stronger core; pick up a set of the best resistance bands instead to provide constant, ...

7. Resistance band exercises Weights aren’t the only tool you can use to strengthen your muscles. You can also perform a wide variety of strengthening activities with resistance bands.