system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5, How Do Compression Socks Work?

I’m curious as to how compression socks help your legs when you have bad circulation. What is the science behind it that allows you to be on your feet without getting fatigued and swelling when you wear them.
gpt
Due to the compression, the arteries can relax and the veins get a boost. It's important for people at risk for circulation problems. It's highly questionable whether it improves blood flow for athletes, but it doesn't do them any harm, and it may have a psychological effect.