Blood tests have long been an important tool for giving doctors a picture of a patient’s health, from cholesterol levels to diabetes risk. Now new genetic science, AI analysis and other advances ...

Knowing your blood type is important information that can come in handy during a medical emergency. It can also tell you more about which medical conditions you're more at risk for, such as heart ...

Norma Lyons uses a tangy trick to manage her blood sugar levels when she wants to eat carbs. Dr. Victoria Finn weighed in on whether or not it can help, especially if you have diabetes or prediabetes.

Artificial blood could reduce preventable deaths in settings where limited supply costs millions of lives in low-income countries. Getty. The blood was created by extracting hemoglobin, the oxygen ...

Monitoring your blood pressure is a vital part of maintaining heart health. When you understand what your blood pressure readings mean, you can make informed decisions about your lifestyle choices ...

Blood in the urine (or hematuria) isn’t always serious, but it can sometimes be a sign of a health issue. Here’s how to know if you should call a doctor.

A blood test that can help diagnose Alzheimer’s disease has received clearance from the Food and Drug Administration. This is a step toward a goal of scientists and doctors to one day be able to ...

A continuous glucose monitor is a small device that sticks to your arm. Every few minutes it sends a signal to your phone estimating your blood sugar levels. But can it improve your health?

Having blood in your stool can be a sign of many health conditions, including colorectal cancer. Here's how to determine if it’s a sign of cancer or another serious condition.

Blood in the stool has multiple causes, like hemorrhoids and anal fissures. Learn about how it's diagnosed, treatment, when to see a doctor, and more.

There was an opportunity Thursday night to catch the March 2025 "Blood Moon," a phenomenon that colors the full moon in shades of red, orange and yellow during a total lunar eclipse.