There is no diet. Just what we as humans elect to eat.

Clutter is hard to deal with for me. My little Calico cat Birdie loves it.
When she and her sister Lily were in their respective cages as kittens,
Lily was neat and tidy and Birdie made a mess of everything. She loves
my studio room as a result. Clutter does mess up the brain, though.

Exercise, if sensible should get the oxygen flowing, the blood and muscles active
and affect mental well-being.

Overdoing exercise, being a jock, beating yourself up as a miler on pavement, lifting too much weight, combat sports, and overexertion is counter-productive, injuries to the legs, knees etc.

Moderation in all things including moderation.