Chemicals within cannabis have powerful antioxidant properties, and scientists believe this can protect the brain from damage. Too much alcohol can lead to permanent brain damage, among other things. A recent study from the University of Kentucky and the University of Maryland concluded that a chemical in marijuana called cannabidiol (CBD) could be used to prevent alcohol-induced brain damage.
It depends , if you play cash games you decide how much you want to play , you can seat and leave tables when ever you want . if you choose to play tournaments it can be between 2-4 hours , and it does no matter how much money you put in , can be 1 dollar or 1000 dollars , the number of entrance that whats matter . A poker game lasts forever.
If a match goes longer than 20 minutes without a knockout or other decision, then it is either a draw or a decision on points. In title fights, this is called  the championship distance , which today usually means 12 rounds (See history section), though there were some ten-round championship matches.n the early days of bare-knuckle boxing, there was no limit on the number of rounds and so matches would be fought to a conclusion (i.e. with a knockout or tap out). For example, the match between Simon Byrne and James 'Deaf' Burke in 1833 lasted 3Â¼ hours.