Getting bigger and stronger may be your sole purpose of heading to the gym every day, but of course you're also getting healthier. Finnish researchers examined the effects of 10 weeks of weight training on cardiovascular health in 52 previously sedentary men. Subjects trained 2-3 times per week using a variety of exercises to hit several bodyparts. Not surprisingly, their lower-body strength and lean body mass had improved significantly by the end of the study. What was surprising was that subjects also improved their times to exhaustion on a cycling exercise improved test - an adaptation normally associated strictly with cardiovascular training. In addition, the group showered significant improvements in specific measures of heart rate variation, which can be indicators of heart health
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