Sour-lemon face: Why does your face wrinkle up when you eat lemons and other sour foods?

(Natural News) Lemons are some of the healthiest and most useful fruits on the planet. They are excellent sources of vitamin C and can be used for a variety of things, such as flavoring foods, cleaning surfaces and utensils, removing foul odors and even making medicine. But despite being fragrant, nutritious and great additions to recipes,...

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