Scientists, including those of Indian-origin, have developed a new smartphone app and hardware that could help measure blood pressure more accurately than existing cuff devices. The team, from Michigan State University in the US, also discovered a more convenient measurement point. "We targeted a different artery, the transverse palmer arch artery at the fingertip, to give us better control of the measurement," said Anand Chandrasekhar, doctoral student at MSU. "We were excited when we validated this location.