Home > Medical schemes > Dictionary of terms Dictionary of terms All sections in Medical Schemes » About Medical Schemes » General Info » Choosing a Medical Scheme » Dictionary of Terms » FAQs » Medical Scheme News » PMB and Chronic Disease » Momentum Health » Fedhealth Dictionary of terms Easy-to-understand explanations of medical scheme and hospital plan terms, jargon and abbreviations. Like us on Facebook » Subscribe to the newsletter » Ask CyberDoc » Quiz How long will you live? » Medical history Bacteria gallery load more articles advertisement From our sponsors How to care for your vaginal flora Live healthier Hello? » SEE: Interesting facts about hearing loss Earworms: Let it go Is it bad to sleep with earplugs all the time? SEE: Do women hear better than men? The reason why men often appear not to be listening could be because they actually can't hear you. Confident smile? » Acidic drinks can harm your kids' smiles The facts on bleaching your teeth Am I taking good care of my teeth? Why are my teeth stained? We know the rules – brush your teeth twice a day and floss to keep them healthy. But, have you ever wondered what causes those stains that sometimes appear?