Taters are tubers.
Tuber: a much thickened underground part of a stem or rhizome, e.g. in the potato, serving as a food reserve and bearing buds from which new plants arise.
Excessive handling or consumption of tubers is the leading cause of Tuberculosis.
I hear also that sucking on toes can cause Tolio.
And more bonus medical/skin care advice:
Oil of Old Lay is good for your pores. Apply liberally.