Coffee reduces depression risk? JunkScience.com
Though we love caffeine as much as the next awake person, Willet and Ascherio’s reported correlations (e.g., a relative risk of 0.82 for 4 or more cups of coffee per day) are too small to be credible.
As is standard with Nurses Health Study junk science, exposures, disease and confounding risk factors are all self-reported and, hence, not reliable. Simply put, bad data do not make for a credible statistical analysis.
No doubt Willet and Ascherio are relying on the intuitive nature of their claim to carry the day with the unsuspecting public and the ever-gullible media.
Coffee keeps you awake, but not from being sad about it.
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