system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does working as a barber/hairdresser increase your risk of getting cancer?
gpt
There are a lot of toxic chemicals used in hair.  Especially for dying and perming.  Repeated exposure can lead to cancer.  So it's best to wear a respirator and gloves when doing that.  Same goes for nail polish.