Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Poo now in pill form to treat gut infection > Health-in-Motion 28 November 2016 Controlled taste tests Controlled taste tests involving volunteers from various cultures suggest that our tongues may be able to register more different types of basic taste than previously thought. A few years ago, umami, a distinctive savoury taste, was added to the more traditional list of sweet, salty, bitter and sour. Recent surveys indicate that in future, ‘starchy’, the taste associated with carbohydrate rich foods like rice, bread or pasta, may also have to be included. No wonder so many of us find carb cravings so difficult to resist. 0 More: Daily Dose: Poo now in pill form to treat gut infectionHealth-in-Motion advertisement Other news Lifestyle Oil foils: your skin-care guide for acne-prone skin Medical SEE: How long should a cough last? Medical Colonoscopy myths busted News Health24 Health Challenge: Week 33 Medical Two more arrests for ARV theft at Kanyamazane Clinic Medical SEE: How anaphylactic shock affects your body 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?