Drinking coffee can reduce mortality.

There is a lot of research on coffee and health, and there is a lot of disagreement. A recent survey of 400000 people in the United States showed that older people who drank a few cups of coffee a day had a lower mortality rate than their peers who drank no coffee at all or very little. In the 14-year survey, 13% of men and 10% of women in the control group who did not drink coffee died. In the control group that drank more than six cups of coffee a day, 19% of men and 15% of women died. The apparent result seems to be that coffee drinking is associated with high mortality. But the researchers point out that coffee drinkers tend to smoke, drink and eat red meat, and when these lifestyle factors are removed from the results, the effectiveness of coffee is reversed. Further research found that men who drank more than two cups of coffee a day anyway reduced the risk of death by 10 per cent and women by 16 per cent. However, the survey did not address which ingredients in coffee can reduce mortality.