Jani Hall is a news editor for Health with a background in health and science journalism. Previously, she worked as a staff reporter for National Geographic. William Truswell, MD, FACS, operates his ...

Hyaluronic acid is a true hero beauty ingredient: It plumps and hydrates skin without feeling oily, increases elasticity and visibly smooths the appearance of fine lines. As an experienced beauty ...

Isabel Casimiro, MD, PhD, is an endocrinologist at the University of Chicago in Illinois. As a physician-scientist in molecular biology, she uses her research on diabetes, lipid disorders, ...

The lemon is a bright yellow citrus fruit. It has its distinctive sour taste and fresh scent because it's rich in citric acid. It comes from the flowering plant family Rutaceae, and its scientific ...