@simoxenham This is very interesting as I suffer from anxiety and insomnia. I am going to try some of these ASMR videos to see if I see a change in heart rate. I have a pulse oximeter at home to monitor my heart rate, so we will see if this works. I will give you my results once I do my at home study. :) Thank you for sharing this as I had never heard of this type of test before and find it interesting that this might be able to help treat others instead of the use of medicines that may not be needed.