Sheila once had thick red hair. Now at the age of 60, most of Sheila's hair is gray. What caused this change in Sheila's hair color?

Question

Quizplus · Accepted Answer

The change in Sheila's hair color from red to gray is primarily due to the loss of melanin. Melanin is the pigment responsible for the color of hair, skin, and eyes. As people age, the melanocytes that produce melanin become less active or stop functioning, leading to a loss of hair color and the appearance of gray hair.

Sheila Once Had Thick Red Hair