You wake up tired which causes you to be less than productive at work. This of course causes you to worry about what you have to do tomorrow to catch up. Worrying naturally causes you to toss and turn allowing a restless sleep generating a whole new day of "deja vu". It's a vicious cycle that needs to be broken. But how? A hot tubs provides the necessary physiological change to your normal day.
A hot tub relaxes the body which in turn allows the mind to relax as well. Using a hot tub just before bedtime allows the body to relax and the mind to rest.