Body temperature is one of the common physiological
parameters measured by wearable sensors for human activity monitoring. The variation in temperature measured on the skin
can give an indication of what is happening with the person’s
body temperature and can be used to detect the symptoms of
medical stress that might lead to various health conditions,
including stroke, heart attacks and shock. The measurement
of body temperature is extremely useful for determining the
physiological condition as well as for other things such as
activity classification [20], [21], or even harvesting energy
from body heat [22].