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 Lifestyle 6 ‘healthy’ foods you should cut back on if you want to lose weight Medical Should you get injected for hay fever? Lifestyle Here’s exactly how often you should wash your hair Lifestyle 4 mistakes you’re making that are causing you to gain weight Medical Why does anaemia make you feel tired and what can you do about it? Medical Here's how hearing aids and cataract surgery may boost the ageing brain From our sponsors Dementia and Incontinence: what you need to know Tell-tale signs you need a mattress upgrade Keen to win a R2 000 voucher? Good health begins in your gastrointestinal tract Live healthier Quit smoking » How to beat triggers that make you crave a cigarette You need to learn how to beat the behavioural, environmental and emotional triggers if you want to succeed in quitting smoking. Hygiene » Your showerhead may be bathing you in germs You probably think showering will wash away dirt and germs, but your showerhead might dump nasty bacteria on you instead that may cause lung infections.