Genes & Cells

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illustration of different weight loss surgeries

Two types of weight loss surgeries, Roux-en-Y gastric bypass (center) and vertical banded gastroplasty (right), change the mix of microbes in women’s intestines. Mice with microbes transplanted from the women who had surgeries gained less weight than did mice that got bacteria from obese women. 

Ethiopian highlands

Over millenia, humans have adapted to the high altitude of Ethiopia's highlands. Researchers have now pinpointed one adaptation — lower levels of cardiac signaling protein — that may make the high life possible.

Olive oil

TASTY  Fats like one found in olive oil don’t just please the palate; they fall under a taste category distinct from the five well-known ones, researchers argue.

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