system
Given the following post, respond as if you're commenting on Reddit:
human
Can a dead person left in the sun get a tan?
gpt
No. “UVA radiation is what makes people tan. UVA rays penetrate to the lower layers of the epidermis, where they trigger cells called melanocytes (pronounced: mel-an-oh-sites) to produce melanin. Melanin is the brown pigment that causes tanning. Melanin is the body's way of protecting skin from burning.” 

Your cells bee to be active in order to create a tan.