![]() ![]() ![]() Stated that way, it sounds relatively simple, but researchers haven't figured out all the details of taste yet: sweet, bitter, and umami have fairly clear relationships to specific cell proteins, but exactly how our tongues detect saltiness and sourness is still a bit of a mystery. When something – a molecule in food you've eaten – hits them just right, a message shoots from the cell to the brain, causing one of the five taste sensations: sweetness, bitterness, sourness, saltiness, or umami. It's covered with little clusters of taste-sensitive cells, and each cell's membrane is studded with proteins that function, essentially, as doorbells. To understand why these foods mess with your mind, first think about your tongue. These little red West African berries make anything sour taste sweet – and it's a remarkably clean, pure sweetness. And for mind-bending parlour tricks, nothing beats miracle fruit. Drink a glass after brushing your teeth with toothpaste, and the normally sweet drink tastes foul instead. Eat one and then drink a glass of water and you might notice that the liquid tastes strangely sweet. It's all because your taste buds respond differently when the environment around them shifts – an effect you can use to go on a little mouth-hacking tour. What you've just eaten can change the flavour of what you eat next – for better or for worse. ![]()
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