Longevity | Biohacking | Strength on Instagram: "Polyester isn’t just fabric. It’s plastic. And it’s now one of the biggest hidden pollution problems in modern life. Credits for the video: @katherine —-> original creator Polyester is made from petroleum. The process starts with crude oil (or recycled plastic), which is chemically transformed into polyethylene terephthalate (PET). It’s melted, extruded into fibers, stretched, dyed, chemically treated, and woven into clothing. It feels like fabric