Nyotaimori is the Japanese custom of serving sushi off the body of a naked woman. Originating in the samurai period, nyotaimori was first practiced by geishas. In preparation for nyotaimori, a woman takes a bath using fragrance-free soap and is splashed with cold water to lower the body temperature and make it more conducive to holding sushi. In some places, sanitation laws dictate plastic must be placed between the food and the body. Sometimes, leaves will be placed under the food. In other cases, the sushi will be placed directly on the skin. A woman might be trained to lie very still before engaging in nyotaimori.