Research on the perception of color differences is helping resolve a century-old understanding of color developed by Erwin Schrödinger. Los Alamos scientist Roxana Bujack led a team that used geometry ...

Dry skin, also called xerosis, can feel tight, rough, scaly, or itchy even when you moisturize regularly. It becomes more common with age. Oily buildup, harsh cleansers, overwashing, hot showers, ...