November 10, 2017 Showing HRV curves at Ted Talk Rickard explains heart synchronisation of Choir singers Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Skype (Opens in new window)