DNA

Our DNA can reveal a lot more about us than our ethnic ancestry, raising concerns about who has access to our genetic code and who may. (Photo: Getty Images)

DNA Detectives

Whose Genes Are They, Anyway? You have seen the ads from companies that promise to tell you, based on your DNA, where your ancestors came from. You are eager to trace your family’s roots, so you order a test kit, send in your sample and await the results.   Your involvement
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Those keypads are teeming with microbes. (Photo: Charlie Riedel/AP)

Dirty Money

ATMs Dispense Germs and Drugs with Cash We live in a dirty world. Wherever we go, we are among microbes. Bacteria, fungi and viruses live on our phones, bus seats, door handles and park benches. We pass these tiny organisms to each other when we share a handshake or a seat on the
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We all love our sugar, especially during the holidays. But a study shows that the FGF21 hormone made in the liver suppresses consumption of simple sugars. (Photo: christmasxcite.com)

Sweet Tooth Control

Liver Hormone May Control “Sweet Tooth” We all love our sugar, especially during the holidays. Cookies, cake, and candy are simply irresistible. While sugar cravings are common, the physiological mechanisms that trigger our “sweet tooth” are not well defined. A study
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