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 ...

Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving. Arteries can be as wide as a nickel (about two centimeters). They are the ...

Taking a magnifying mirror to the face is never a fully positive experience—especially when you sit under the fluorescent bathroom lights in hopes of a satisfying extraction, and instead come across ...

Maybe you've noticed a smattering of tiny red dots across your face and wondered what they are. If you've ruled out acne or acne scars, chances are those red marks are actually tiny broken capillaries ...

No matter how "good" your skin is (a term I use loosely), there are always those little things about your complexion that you get stuck on. More often than not, the issue that's bothering you is ...

Throughout our lives, our bones are continuously remodeled to maintain strength, repair injuries and adapt to new stresses. Bone dynamics depend on two associated cell types: osteoblasts, which are ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Our bones may be filled with previously undiscovered networks of microscopic tunnels, a new study ...

While medical centers use ultrasound daily, so far this technology has not been capable of observing body tissues at the scale of cells. Physicists have now developed a microscopy technique based on ...