Finding it hard to cope with stress? Take heart a novel probiotic-based shot that could protect against post-traumatic stress disorder (PTSD) anxiety and depression -- that are known to impact as many as one in four people in their lifetime -- could soon be on the anvil say researchers. Various studies have suggested that stress-induced brain inflammation are boosting risk of such disorders in part by impacting mood-influencing neurotransmitters like norepinephrine or dopamine. Read: Expert tips to reduce stress and keep your heart healthy Thus in the new study the researchers showed that immunisation with beneficial bacteria can have long-lasting anti-inflammatory