The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is ...

Other strong muscles include the tongue, heart, uterine muscles, external eye muscles, and Soleus (a muscle found just below the calf). What is the largest bone in the human body?

Microplastics, which are less than 5 millimeters wide — or about the size of a pencil eraser —can enter the human body through the mouth, nose and other body cavities.

Lungs are among the heaviest organs in the human body. The right lung typically weighs about 1.4 pounds (0.6 kg), while the left lung is slightly smaller and weighs approximately 1.25 pounds (0.56 ...

It's not science fiction anymore: 3D-printing a human heart is now a reality. A company called Biolife4D has developed the technology to print human cardiac tissue by collecting blood cells from a ...