As it stands, a handful of states - including Delaware, Nevada and New Jersey - are very close to offering regulated online poker. Nevada is the leader of the pack among US states when it comes to regulating online poker, bringing the country the first US-licensed real-money poker site in 2012.
Answer Wiki. Breathing pure oxygen kills you because it destroys the normal gas balance with CO2 (carbon dioxide) in the lungs required for effective oxygenation on the cellular level. That's why some modern lifesaving applications prefer using Carbogen instead of pure Oxygen. Carbogen is a 95:5 mixture of O2 and CO2.
Oxygen is possibly our most basic human need. People can begin to experience brain damage after as few as five minutes without oxygen. There are several things that may prevent you from getting the oxygen you need. Environmental risks such as high amounts of smoke, high altitudes or carbon monoxide can prevent you from breathing in oxygen.