Samsung applies for patent on cell phone that monitors a woman’s menstruation cycle by measuring basal body temperature (BBT).

Patent application here. The abstract:

A basal body temperature (BBT) measurement method includes: measuring each distance to at least one ear canal area by emitting a pulse to a user’s ear canal; measuring a body temperature in the at least one ear canal area utilizing infrared rays; recognizing a first body temperature corresponding to a first distance which satisfies a predetermined standard, among the each distance to the at least one ear canal area, as the user’s eardrum temperature; and converting the eardrum temperature into the user’s BBT.

Via Phosita.