Dad was skeptical about our overnight, but he agreed because we were doing it for my mothers 84th birthday, it was the gift of health (due to glaucoma she has very little eyesight). Dad had lost his hearing years ago and refuse hearing aids, 3 days after the overnight he intervened in a conversation I was having with my sister, in surprise I questioned him on how was it that he could hear our conversation he stated that 2 days prior he had buzzing in his ears and then a loud pop and that he could hear, his energy levels have also increased. Mom has also reported more clarity on her eyesight and less stress.