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 12 December 2017 Your mouth is home to a plethora of different bacteria You might be surprised to hear that your mouth is home to a plethora of different bacteria. But don’t be alarmed, many of the hundreds of species of microorganisms that live in your saliva play an important role in defending you against a variety of harmful pathogens attempting to enter your body. Recently, British researchers have discovered that the particular mix of these salivary microbes is not passed on from parent to child, but is mostly determined by the household environment in which you grow up as a small child. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Medical What bacteria can cause trouble in your mouth? Medical New study shows vapers can be a good influence on smokers Medical Workplace bullies are putting your heart at risk Lifestyle Man reveals how he lost 76kg after his girlfriend cheated on him News Thank you for caring News Is crowdfunding too often used for bogus treatments? 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 Infancy » Antibiotics during infancy may up childhood obesity risk New research suggests that babies who are prescribed antibiotics before they're two years old may be more likely to become obese. Seasonal changes » Is your home making you sick? Should you get injected for hay fever? Is your medication struggling to keep your seasonal allergy symptoms in check? There is a shot for hay fever – and this is what you need to know.