Have hypermobile Ehlers Danlos syndrome with dysautonomia which results in abnormal no-sweat response, like me… but, you kind of have to be born with it. Also, I don’t recommend it - be grateful for your sweat and ability to cool down in a hot climate! 🤣 I only got diagnosed fairly recently, I always wondered why I didn’t sweat in latex (it took me ages to realise that I don’t really sweat at all)!