Dentistry

Ditching the toothbrush for whiter teeth, fewer cavities

The first thing people notice when they meet you is your smile. To be more confident when giving wide-mouthed, eye-crinkling smiles, people want healthy, pearly white teeth. But toothpastes only remove surface stains, and ...

Oncology & Cancer

Study shows why many cancer cells need to import fat

Columbia and MIT researchers are revealing the surprising reasons why cancer cells are often forced to rely on fat imports, a finding that could lead to new ways to understand and slow down tumor growth.

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