The first time I tried it I was about eight years old. My father had had a heart attack after World War II had ended and I was about six. We were living in Holland.
In those days, people with heart disease were put in bed rest for months on end.
My father used to get angina pains in his chest, and besides a nitroglycerine pill, he used the services of a woman to do laying-on of hands on him and take the pain away.
It seemed to give him relief.