What is the connection between sleep and mental illness? How does this play into your understanding of the eight dimensions of wellness?

With lack of sleep, people can become irritable and sad. Loss of sleep can also make you feel drained and isolated.

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)