Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them. They help to connect your arteries and veins in addition to facilitating the exchange of ...

Get to know the functions of your heart, blood vessels, and blood itself and how they work together to maintain your health.

Bones are a key part of your skeletal system. They’re lightweight structures that are incredibly strong. A normal adult has around 206 bones in their body. Your bones join together to make your ...

There are many different types of medical doctors, ranging from general practitioners who can treat a wide range of health conditions to specialists with a very specific skill set. Medical doctors are ...

Memory is the way your brain takes in and stores information so you can use it later on. Memories define who you are in a lot of ways. They help you recall things like important dates, facts, and even ...

The six essential nutrients are vitamins, minerals, protein, fats, water, and carbohydrates. People need to consume these nutrients from dietary sources for proper body function. Essential nutrients ...