Runner’s face is a term used to describe changes in the facial appearance that some runners may experience over time, including leathery, saggy, aging, lean, and tired-looking skin. This cosmetic condition …
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Hyaluronic acid—also known as hyaluronan or hyaluronate—is a molecule that’s found throughout the body. The substance is found naturally in the skin, connective tissue, joint fluid, umbilical cord, and inside …
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Magnesium is an essential mineral that your body doesn't make, which means you have to obtain it through your diet. Magnesium is needed for critical functions such as blood sugar …
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Libido, also known as sex drive, refers to a person’s desire for sexual activity. There is no concrete “norm” when it comes to libido. Some people crave sex on a …
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Loss is a normal part of life. But for some people, fear of losing their loved ones is a constant source of anxiety, also known as fear of abandonment. Fear …
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Catastrophizing is when someone focuses on the worst that can happen. Most of the time, it involves magnifying small problems and thinking you’re in a worse situation than you actually …
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Human immunodeficiency virus (HIV) is a virus that attacks CD4 cells (white blood cells) in the immune system. The virus transmits from person to person through unprotected sex and shared …
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Human immunodeficiency virus (HIV) is a chronic condition that affects the immune system’s ability to fight infections. You can get HIV or pass HIV to someone through blood, semen and …
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Human immunodeficiency virus (HIV) is a virus that targets and destroys CD4 cells—a type of white blood cell. Your immune system uses white blood cells to fight off infections. If …
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Human immunodeficiency virus (HIV) is a virus that attacks white blood cells (called CD4 cells) in the immune system. These cells help your body fight infections. HIV kills CD4 cells, …