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 Updated 08 December 2017 Beer can make you happy. Beer can make you happy. This has been common knowledge for millennia, but now a team of German researchers has discovered the reason why. They investigated some 13 000 chemical components found in food to identify those that can interact with the so-called dopamine D2 receptor and thus stimulate the brain’s reward centre – the kind of ingredients that make us come back for more. It turns out that beer contains hordenine, a substance present in malted barley, which does so quite well and probably accounts the feel-good factor beer drinkers experience. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Medical SA first country to break all barriers to revolutionary TB drug Medical Here’s how to train your bladder Medical How your mucus can be a guide to sinusitis treatment Medical SURVEY: Which of these bizarre allergies do you suffer from? Sex Meet the anorexia survivor who lived on water and gum Lifestyle ‘I’m the woman whose terminal breast cancer went into remission after immunotherapy’ From our sponsors Tell us of your unusual allergy and stand a chance to win R2 000! WIN a R2000 Skin Renewal online store voucher! Stand a chance to win an Alpecin product hamper worth R1 500! FLU SURVEY: Stand a chance of winning R2 000 cash! Live healthier The juicing trend » A cup of beetroot juice daily can reduce blood pressure Pomegranate juice protects brain The truth about juicing The juicing trend has been around for decades, but how good is it for you really? Your menstrual cycle » SEE: 14 facts about menstruation you might not know Your diet and PMS 5 period apps that make tracking your menstrual cycle a breeze Know exactly when Aunt Flow is on her way.