Abstract: A heart rate monitor adapted to be worn on eyewear such as a pair of eyeglasses, a mask or goggles. The heart rate monitor includes a sensor in contact with the bridge of the user's nose. The sensor is responsive to pressure variations or pulses produced during a heart beat cycle. The sensor provides an analog signal having a frequency equal to the user's pulse rate. The analog signal output from the sensor provides an input signal for a microprocessor which includes a frequency counter and signal averager. A microprocessor output signal having a magnitude which is proportional to the heart rate in beats per minute provides the input signal for an optical readout device such as a digital display which is preferably mounted on the frame or stem of the user's eyewear. The image on the optical display is conducted to an eyepiece lens which is mounted most preferably on one of the lenses of the eyewear by means of an image conduit such as a fiber optic or fiber optic bundle.