a device and method for detecting febrile convulsions , the device including a detector for detecting motion of the device and providing an output corresponding thereto , a capacitor coupled to the detector and charged by the output of the detector , a resistor coupled to the capacitor to provide discharge of the capacitor , a comparator for comparing a voltage level of the capacitor to a reference voltage and providing a signal when the voltage level of the capacitor is greater than the reference voltage , and an indicator driven by the signal from the comparator to provide an indication of febrile convulsions .