Resistance training can also improve bone health, make your muscles stronger, and boost your metabolism. As if that wasn’t reason enough to pick up a kettlebell, here's one more: Research suggests that the resistance training can have big skin benefits, too. So without further ado, here’s what we know about the relationship between resistance training and skin health, according to dermatologists. When you workout using various resistance training exercises, your muscles are likely to gradually increase in size and “fill out the skin,” Dr. Gohara says. Resistance training might be able to make your skin more resilient, springy, and supple.