Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxic > Health-in-Motion 22 November 2017 Why is yawning contagious? Why is yawning contagious? Scientists at the University of Nottingham have recently published a study which shows why yawning when someone else nearby does is so very difficult to resist. It turns out that the chain reaction is automatically triggered as a virtually unstoppable primitive reflex in the brain’s primary motor cortex, which is responsible for motor function. Experts refer to infectious yawning as an example of echopraxia – the automatic and involuntary imitation of another individual’s actions and it occurs in other species, like dogs and chimpanzees, too. 0 NEXT ON HEALTH24X The 12 best natural remedies for a cough, according to doctors 2019-09-08 21:00 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Lifestyle Smartphones may leak more radiation than expected Medical 6 foods that can cause inflammation Diet and nutrition Fighting stunting and obesity with food Diet and nutrition Here's another warning on soft drinks – and it doesn't matter if they contain sugar or not, according to a large study Diet and nutrition Do you really need to give up carbs to lose weight? Medical WATCH: Researchers discover routine to overcome insomnia Live healthier Heart health » 5 women share exactly what it feels like to have a heart attack 'I felt like I had a pill stuck in my throat.' Diet & Nutrition » 8 benefits of gherkin juice that will make you want to drink some ASAP Goodbye, salt craving.