Aerobic training has long been associated with a reduced incidence of depression. Now, thanks to a new study led by researchers at the University of Limerick, in Ireland, weight training has joined the depression fighting club. The New York Times reports that researchers at the school reviewed 33 studies of weight training and depression involving almost 2,000 men and women of various ages, some of whom had been diagnosed with depression, while others had not. The researchers found that resistance training reduced the symptoms of depression for people who had been depressed and for those who had not been depressed. Pretty much everyone felt better after training. Most interesting: the frequency and intensity of training didn’t matter much. People felt better if they worked out twice a week or five times a week, and if they did lots of reps, or just a few.