É sempre bom saber

Segundo estudos de cientistas do Imperial College London, most of the cells in your body are not your own, nor are they even human. They are bacterial. From the invisible strands of fungi waiting to sprout between our toes, to the kilogram of bacterial matter in our guts, we are best viewed as walking "superorganisms," highly complex conglomerations of human cells, bacteria, fungi and viruses.

Acho que vou passar a escovar os dentes durante mais de dois minutos, a lavar as mãos de hora a hora e a tomar duche duas vezes por dia...