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Data were accessed from the nurses’ health study, which enrolled 121,700 U.S. female registered nurses who were 30-55 years old at the outset in 1976. Every 2 years, participants provided information about their lifestyle, medical history, and illnesses via mailed questionnaires.

Does Caffeine Reduce the Risk of Depression?

Data were accessed from the nurses health study, which enrolled 121,700 U.S. female registered nurses who were 30-55 years old at the outset in 1976. Every 2 years, participants provided information about their lifestyle, medical history, and illnesses via mailed questionnaires.