Credit to The Monkey Man and others who asked him to expound.
After reading his post, I started googling and found info, but, but...
...read a reader's review of one book and it led me to this.
The Molecule of More.
the title refers to the molecule dopamine.
There is a free pdf ( which rarely happens) and it's a hassle to read a pdf on your phone, but, but.....
.... after reading the first pages, it's what ya'll been searching for.....how to find that joy of life again..
.... even looks like a free audio book...