This is simply been proven to be not true. Studies including one in the UK show that strength training improved muscle and skin, as well as lowering blood pressure in men studied..."Thus, circuit weight training can elicit marked improvements in muscular strength and modest improvements in body composition and cardiorespiratory endurance. Circuit weight training does not exacerbate resting or exercise blood pressure and may have beneficial effects."
So enjoy the benefits of weight training which are many..
quoted from: Harris KA, Holly RG