Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how ...

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...

Red snakes are perhaps the most visually stunning of these intriguing reptiles, drawing attention with vibrant shades of ...

While Detroit Red Wings goaltender John Gibson didn't get off to the kind of start that he wanted in his first several starts since being acquired from the Anaheim Ducks during the offseason, he's ...

Viral video circulating online shows how heavy rain recently turned an island's landscape blood-red. Hormuz Island off Iran in the Persian Gulf turned a deep crimson, dramatic footage shows, after a ...

University of Virginia School of Medicine scientists have discovered how calcium activity in kidney cells regulates the production of renin, a hormone that raises blood pressure. The finding marks a ...

Yes, high blood sugar can cause heart palpitations. However, there are also many other potential causes, such as stress, low blood sugar, hormonal fluctuations, certain medications, and stimulants, ...

Global rates of hypertension, or high blood pressure, in childhood and adolescence have nearly doubled since 2000, putting more kids at risk for poor health later in life. “In 2000, about 3.4% of boys ...

Some of the changes associated with the menopausal transition can increase the risk of hypertension (high blood pressure). For example, declining estrogen levels can narrow blood vessels, and ...

High blood pressure, or hypertension, happens when the force of blood pushing against your artery walls is too high over time. High blood pressure is usually a symptomless condition. Fatigue is also ...

More than half a million bottles of blood pressure medication have been recalled over high levels of a chemical compound that could cause cancer, the Food and Drug Administration said. Parsippany, ...

Good news for the millions managing high blood pressure: Researchers at the University of Exeter found that this nitrate-rich drink may help relax blood vessels and improve circulation. Roxana Ehsani, ...