Consider these facts: 60 percent of Americans don’t do any musclestrengthening activities on a regular basis. Thirty-five percent of U.S. adults are sleep-deprived, and as many as 22 percent of U.S. adults contend with chronic insomnia.
What’s the relationship? Well, according to research out of Iowa State University, if you want to improve your sleep duration and quality, resistance exercise is mo…