"Coffee and caffeine have been inexorably intertwined in our thinking, but truth is coffee contains a whole lot of other stuff with biological benefits," said Martin. And most concerns about caffeine's negative effects on the heart have been dispelled. In June, a meta-analysis of ten years of research went so far as to find an inverse association between habitual, moderate consumption and risk of heart failure. The association peaked at four cups per day, and coffee didn't stop being beneficial until subjects had increased their daily consumption to beyond ten cups.Share
Caffeine might also function as a pain reliever. A study from September suggested as much when its authors stumbled across caffeinated coffee as a possible confounding variable in its study of the back, neck, and shoulder pains plaguing office drones: Those who reported drinking coffee before the experiment experienced less intense pain.
The data is even more intriguing -- and more convincing -- for caffeine's effects as a salve against more existential pains. While a small study this month found that concentrated amounts of caffeine can increase positivity in the moment, last September the nurses' cohort demonstrated a neat reduction in depression rates among women that became stronger with increased consumption of caffeinated coffee. (Read entire article.)