Omega 3 oils have many health advantages, one of the lesser known ones is that Omega 3 oil allows your body to survive much lower than normal blood oxygen levels.
Years ago a single coal miner at the Sago Mine survived being in carbon monoxide contaminated air but all his crew mates died despite the men being together. It was later found that he liked fish and had eaten it 3 to 4 days per week prior to the mine disaster.
