Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Rare flesh-eating bacteria kill boy within days > Health-in-Motion 04 December 2017 Do you itch when in a stressful situation? Have you ever noticed that some people seem to start scratching themselves when they’re in stressful situations? A new study suggests that this kind of behaviour may actually a be a result of evolution in monkeys, apes and humans which acts as a social communication tool signalling that an individual is experiencing anxiety. It appears to help with social cohesion by reducing aggression in others. Researcher Jamie Whitehouse explains that revealing stress to others this way makes the situation more transparent and "transparency ultimately reduces the need for conflict”. 0 More: Daily Dose: Rare flesh-eating bacteria kill boy within daysHealth-in-Motion advertisement Other news Lifestyle From doing drugs in Khayelitsha to a mobile counselling practice Medical Why are women getting more kidney stones than men? Parenting Different ways of keeping in touch with your kids at college Diet and nutrition The right way to track your weight loss News SEE: Why you are drinking more alcohol than you realise News Alcohol isn't just hurting your pocket - see what it's doing to your body From our sponsors Managing diabetes in the workplace Back-to-school with diabetes Discover treatments that can help reduce acne What can I do to reduce or remove acne marks? Live healthier Fact or myth? » Clearing up the confusion around coconut oil Coconut – the 'fruit of life' Can coconut oil really help you lose weight? Experts dish on the high-cal weight-loss tactic. Sobering perks! » 5 tips to avoiding a hangover Can you really be allergic to alcohol? Is giving up booze for a month actually worth it? Many people commit to "Dry January" – but does it do your body any good?