Paper: https://academic.oup.com/pnasnexus/article/3/7/pgae252/7717708?login=false https://academic.oup.com/pnasnexus/article/3/7/pgae252/77177... They tested o

Paper: https://academic.oup.com/pnasnexus/article/3/7/pgae252/7717708?login=false https://academic.oup.com/pnasnexus/article/3/7/pgae252/77177... They tested on the carotid artery. I don't know whether they're concerned with addressing issues of wearing this while active. It seems more likely that it will be used in a clinical setting.