Rising carbon dioxide levels are heating the planet but may also have an alarming, invisible impact on the human body, ...

“What is that thing on your shoulder?” has been the question I’ve been asked most frequently for the last month. Understandably so. For the last 30 days, just barely peeking out from under the sleeve ...

A sodium blood test will tell you if your blood sodium levels are normal. Blood sodium levels actually have little to do with how much sodium you consume and are tightly regulated by your body's ...

Becky Brown is a professional writer whose mission it is to empower readers. She tells stories that help people make smart, informed decisions about their health and lives. She’s covered everything ...

Alanine aminotransferase (ALT) is a liver enzyme, and high levels can indicate liver damage. Dietary and lifestyle steps to lower ALT levels may help the liver recover. This article looks at what ALT ...

Thyroid level tests, including thyroid-stimulating hormone (TSH) and free T4, help diagnose underactive or overactive thyroid. Doctors may also check free T3, calcitonin, thyroglobulin, or thyroid ...

Hematocrit is the percentage of red blood cells in a person‘s blood. A typical hematocrit range in adults is 36–54%. However, age, sex, and health conditions can influence hematocrit levels. Low red ...

Eating certain foods, like those high in protein, and healthy practices like exercising and sleeping the recommended amount can help increase your body’s dopamine levels without medication. Dopamine ...

Lindsay Modglin is a nurse and professional writer who regularly writes about complex medical topics, as well as travel and the great outdoors. She holds a professional certificate in scientific ...

Popular weight loss medications like Ozempic can help reverse low testosterone levels in men with obesity or Type 2 diabetes, according to new research. Building on previous studies that show weight ...