Jay Leno’s wife, Mavis Leno, “sometimes does not know her husband […] nor her date of birth” amid her battle with Alzheimer’s ...

but you also have a vaporizer which is heated by a pilot light to turn water into steam," Leno explains. For more on Jay Leno, listen below to our daily podcast PEOPLE Every Day. Once a little air ...

As his wife Mavis remains by Leno's side, Grossman notes that Jay has been a "remarkable kind and engaging patient" on his road to recovery. "He passed out cookies to children in the burn unit.