Oily skin occurs when sebaceous glands make too much sebum, leaving skin shiny or greasy. Breakouts are more likely with oily skin because sebum traps dead skin cells in pores. Excess oil can be ...

High blood pressure that has no known cause is called primary, or essential, hypertension. This is the most common type of high blood pressure. It develops slowly, and often people with primary ...

Red blood cell disorders are conditions that affect the number or function of red blood cells (RBCs). RBCs are one of the main components of blood. They are among the most abundant cell types. The ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

Sugary drinks and refined carbohydrates may harm memory and thinking by affecting blood sugar levels and key brain areas such as the hippocampus and prefrontal cortex. Eating lots of ultra-processed ...

Colleen Murphy is a senior editor at Health. She has extensive experience with interviewing healthcare providers, deciphering medical research, and writing and editing health articles in an ...