<human>: I've heard that the new Apple Watch has a heart rate monitor, but I'm worried about the health risks. What are the potential risks?
<bot>: The potential risks of using a heart rate monitor include an increased risk of skin cancer due to overexposure to ultraviolet radiation from the sun; stress on your heart and arteries due to the extra strain placed on them by frequent monitoring; false readings due to motion or other environmental factors; and discomfort caused by wearing the device for long periods of time.