No sweat

If you suffered from hyperhidrosis it would mean that you perspired excessively and your problem was too much sweating. The hyper- prefix means much or greater, and hidrosis is the technical name for sweat, which derives from the Greek for sweat hidros. Perspiration comes from the Latin perspirare meaning to breathe through, which is from spirare meaning to breathe (as in expire and inspire). So the sweat breathes through your skin. If excessive perspiration is your problem, you need an antiperspirant to stop you sweating. Antiperspirant products contain chemicals (eg aluminium salts) that block the pores on the surface of your skin, and a deodorant to kill odour-causing bacteria on the skin surface and to mask the smells they produce.