 uh these are protections for workers and so heat affects your body it also makes you more sluggish it makes your movements less precise so you got to imagine these are workers who are climbing up to you know high heights on ladders who are swinging around heavy pieces heavy tools cutting tools if you're a roofer you might be mopping 500 degree boiling tar onto a roof and so if you slip up there's serious consequences that aren't just you get heat stroke but you can get injured