Relieve stress by doing something for your whole body.
According to the Mayo Clinic, a single set of 12 repetitions with the proper weight can build muscle just as efficiently as three sets of the same exercise using the wrong weight. That's good news given today's busy lifestyles.
Start with a weight you can lift comfortably eight times. Once you can comfortably complete 12 repetitions, increase that weight by no more than 10 percent.
Strength training is an important part of any exercise routine, but unfortunately it's an area that women disregard. For many women, resistance training is often associated with bulky muscles. However, many experts say that unless you're a gifted athlete and train really hard, you won't get huge, bulky muscles. Instead, strength training will tone your entire body, build your strength and endurance, help you burn more fat, and improve your overall health.