Taking your body temperature can be used for more than just telling if someone has a fever.Basal body temperature (BBT), or the lowest temperature a body reaches during sleep, is also an important clue for women who are tracking their menstrual cycles and want to see what days they are most likely to conceive.
In order to be accurate, however, basal body temperatures have to be recorded at the same time each morning. As a result, it can be hard to track for people with irregular schedules or sleep patterns. Tempdrop is a wearable sensor that makes it easy for people to monitor and record their basal body temperatures.
That data can be integrated by developers into any fertility app with few lines of code. The startup, which is currently raising funds for Tempdrop on Indiegogo, has already collaborated with Kindara, OvuView, My Days, Menstrual Calendar, LadyTimer, and other apps.
Founder Michael Vardi contacted me after I wrote an April Fools’ post about a non-existent dongle that measures cervical fluid consistency (another important fertility indicator), but Tempdrop is very real and currently available for pre-orders starting at $50. If successfully funded, the device is scheduled to ship in October.
Basal body temperature is defined as the lowest body temperature during a 24-hour period. Most people hit that point about two hours before waking time, Vardi explained in an email, as long as they get three hours of uninterrupted sleep. Tempdrop can be worn with an armband or stuck directly to the skin. The device records fluctuating body temperatures while its user sleeps.
Tracking basal body temperature is not only useful for women who want to conceive–or avoid pregnancy–but also for people with thyroid disease.