Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away …

Jan 29, 2026 · In this week's episode, Blood Associate editor Dr. Hervé Dombret interviews authors Drs. Sarah K. Tasian and David T. Teachey on their contributions to the How I Treat Series on acute …

Blood is a specialized fluid that constantly flows throughout your body. It’s made of plasma, red blood cells, white blood cells and platelets.

It has four main components: plasma, red blood cells, white blood cells, and platelets. The blood that runs through the veins, arteries, and capillaries is known as whole blood—a mixture of about 55% …

Jan 26, 2026 · Blood is a fluid that transports oxygen and nutrients to cells and carries away carbon dioxide and other waste products. It contains specialized cells that serve particular functions. These …

Detailed information on blood, including components of blood, functions of blood cells and common blood tests.

Am I Eligible to Donate Blood? Are you eligible for blood donation? Find out about the eligibility requirements to donate blood today. Learn about general health, travel, medications, tattoos, and more.

Donate blood on the Big Red Bus or at a blood donation center near you. By giving blood, you give the gift of life.

May 11, 2023 · Blood has many functions in your body. Blood tests help doctors check for certain diseases and conditions. Learn about blood types and blood tests.

The main job of white blood cells, or leukocytes, is to fight infection. There are several types of white blood cells, and each has its own role in fighting bacterial, viral, fungal, and parasitic infections.