Summary: HEALTH NEWS · Largest study of its kind shows leafy greens may decrease bowel cancer risk · Twin research indicates that a vegan diet improves cardiovascular health · Violence in childhood leads to accelerated aging, study finds · Moderate regular exercise found to alleviate some symptoms of postpartum depression · Scientists uncover how fermented-food bacteria can guard against depression, anxiety · Very high levels of 'good cholesterol' may be associated with dementia risk, study shows
