system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do anti-fatigue mats work? (commonly found in service industry jobs)

I've worked many service-industry jobs (bars/kitchens/back-of-house type stuff) and realized working on surfaces covered with anti-fatigue floor mats allow me to be on my feet all day without really getting tired. 

Searched the sub and couldn't find an answer. Would love if someone could ELI5!
gpt
Standing in place on a hard surface creates a lot of pressure on your joints and veins. An anti-fatigue mat adds a bit of cushioning between you and the floor. It also absorbs some of the impact when you move around on it. Finally, it helps improve circulation by reducing pressure. Runners who run on concrete get injured much more quickly and often than bikers (a low-impact exercise) or runners who run on a trail for the same reason.