Researchers have identified the processes that cause gray hair and have done experiments to reverse it. And believe it or not, we've had some of these options for decades.

What happens if you eat too many raw eggs? What are those little rods sticking out of airplane wings? All this, and more as Nicole Sweeney, host of Crash Course Sociology, faces off against Hank in an episode of the SciShow Quiz Show.

Join the Amoeba Sisters on this introduction to the Integumentary System! This video first introduces the important functions of this system. Then, this video takes a general tour through the epidermis (and each stratum of the...

Hair can be so many different colors, but why do so many adults have gray hair?

Just like the myth that plucking one gray hair will make three sprout, stress making your hair white isn't actually a thing. Or is it?!

Our bones are multi-functional body builders, but perhaps their most mysterious function is the production of blood. Scientists now think they have a pretty good idea why this is where our blood gets made.

Kids are weird. They eat mud, talk to bugs, and stick things up their noses... but the changes kids go through as they grown out of infancy and into childhood are even weirder!

When ultraviolet sunlight hits our skin, it affects each of us differently. Depending on skin color, it'll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the slightest change....

Zebras are actually black with white stripes. All animals get their colors from pigments called melanin which are of two kinds - eumelanin gives a black to brown color which pheomelanin gives reddish to yellow hues. The cells that create...

Uncover the fascinating world of skin genetics with a deep dive into how freckles form and why they're hereditary, and explore the nature of moles and their implications for health. Featuring expert dermatological insights, this video...

Zebras are actually black with white stripes. All animals get their colors from pigments called melanin which are of two kinds - eumelanin gives a black to brown color which pheomelanin gives reddish to yellow hues. The cells that create...

In this video, we will discuss the metabolic pathway for melanin biosynthesis. We will also differentiate the separate pathways for Eumelanin & Pheomelanin.<br/>

In this video, we discuss several homeostatic imbalances of the integumentary system and their mechanisms: albinism, a nevus, freckles, and hemangioma.

In this video, I explain and differentiate the three main types of skin cancers: basal cell carcinomas, squamous cell carcinomas, and malignant melanomas.

Vitiligo (Skin Depigmentation) | Pathophysiology, Signs and Symptoms, Diagnosis, Treatment



Vitiligo is a primary pigmentary condition involving depigmentation of the skin. The etiology is unknown. The pathophysiology involves...