Ybrain, a Korean startup that makes wearables for Alzheimer’s patients, announced today that it has raised $3.5 million in Series A funding led by Stonebridge Capital, bringing its total raised so far to $4.2 million. Co-founder Seungyeon Kim said that the money will be used for clinical trials and the manufacturing of its wearable devices. The company was founded in 2013 by Kyongsik Yun, a neuroscientist who trained at the California Institute of Technology, and engineers from Samsung.