Comment: depression link? (Score 1) 234
Maybe this is because people who drink coffee are less depressed?
One of the symptoms of severe depression is tireness. People with severe depression often sleep all day. People who are not severely depressed want to get up and out of bed, into the world, and drink coffee to help them do so.
Thus, mortality numbers are skewed by the suicides of the depressed (and thus more likely to fall ill, abuse drugs/alcohol, and/or commit suicide.)