Id say that chocolate milk may have the most potassium of them all. Water does not have any nutritional content (though it is still important). Juice overall will vary, milk does have a high amount of potassium but the added chocolate syrup does add some more.
I believe that item is: Defibrillator
The recommendations that made by ANSI are the items that could be used even in small working sites.
Defribrilators requires a pretty huge amount of electrical supply which make them unable to be brought to small working sites.
Just google it youll find it quicker or watch a movie and write
A few things can include taking a hot shower before bed, make sure you've completed everything you needed to do for the day, and go to bed on the right time, a bad habit would probably be staying up late to watch a movie or something