In the 1940-es the old odd fellow Al Herpin lived on the outskirts of Trenton, New Jersey. And he was 90 then. There was neither a bed nor a sofa in his shack - Al Herpin never slept in his life. By this age the old man outlived many doctors who had examined him, and who of course slept regularly and couldn't understand how to do without it. Al's intellectual faculties were average, his health and appetite were good, he never avoided any work. After working day he got tired of course, but still couldn't sleep.
The old man just sat in his rocking-chair and read until he felt rested. Having recreated he went to work again. The doctors didn't manage to find the explanation to Al's chronic insomnia, and couldn't find the explanation to his longevity.
