By Paresh Dave OAKLAND, Calif. (Reuters) – Google announced on Thursday its latest plans for using smartphones to monitor health, saying it would test whether capturing heart sounds and eyeball images could help people identify issues from home. The company, a unit of Alphabet Inc, is investigating whether the smartphone’s built-in microphone can detect heartbeats and murmurs when placed over the chest, head of health AI Greg Corrado told reporters. Readings could enable early detection of heart valve disorders, he said. “It’s not at the level of diagnosis but it is at the level of knowing whe…