Years ago (6 or more), I was driving on Rt. 8 North in Butler, PA and passed a business called Tesla Medbed.

I was astonished because my ex-husband, with whom I have remained friends during the 40 years since our divorce, had been yapping about Medbeds for a long time. I knew they were a hoax because no matter how long you lie in a Medbed, you will not get out of it actually physically being and looking 30 years younger.

My ex believed in a lot of hoaxes. He later had a brain tumor removed and his ridiculous discussions about these matters had pretty much stopped.

Anyway, that business is still there, only in a more elaborate (I assume) form: https://www.teslabiohealing.com/collections/butler-pa-center

It seemed like he was born an old man.