Jennifer Lopez uses Transcendental Meditation to help her cope with stress and anxiety. The 52-year-old singer/actress has revealed hip-hop mogul Russell Simmons introduced her to TM guru Bob Roth who taught her the techniques she needed to use the mantra-based meditation to battle the strains of every day life – and she says it was a huge help. In the latest edition of her ‘On the JLo’ newsletter, Jennifer wrote: “A few years ago, Russell Simmons gifted me a teacher to help me meditate … Transcendental Meditation is a simple practice that dramatically changes how we respond to stress and li…