What sweat actually contains, why aluminum in deodorant is worth understanding, and what it means for your body when you stop sweating altogether. Press enter or click to view image in full size Figure created using AI image generation (PaperBanana.org) Most people think of sweating as an inconvenience. Something that ruins shirts, causes embarrassment in meetings, and needs to be chemically suppressed before leaving the house. The entire deodorant and antiperspirant industry, worth tens of billions of dollars globally, exists essentially to make sweating less visible and less noticeable. What most people don’t know is that the skin is the largest organ in the human body, covering roughly two square meters of surface area, and sweating is one of the mechanisms by which it does active physiological work. The sweat glands embedded in your skin are a system doing work your kidneys and liver cannot fully substitute for.…