system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do our hands, feet, thighs, and some other parts not get pimples as much as the rest of our body?
gpt
Most of these parts of the body just do not have much in the way of sebaceous glands in the skin that produce natural oils. These glands are different from sweat glands. Way back when our species used to have a lot more hair, this oil helped protect our fur and keep it shiny. We are more prone to pimples now because we don't have as much hair anymore, so this oil pretty much just sits on the surface of our skin and clogs our pores. Pimples are bacterial infections inside the sebaceous glands that happen as a result.