[Apple] wants to develop software and sensors that can predict heart attacks by identifying the sound blood makes as it tries to move through an artery clogged with plaque, the source said.

I find it highly improbable that Apple is trying to enter the medical device market. It just seems like an awkward move for them. Apple is secretive and prefers to control as much of the customer experience as possible. As 23andMe found out, the FDA likes to exercise their control over medical products. Why would Apple move into such a highly regulated market?

Regardless, I’m excited to see what they have up their sleeve, medically-focused or not.