They are intended (and marketed) to improve mood, alertness and productivity—but may have long-term secondary effects that are decidedly less beneficial.
A variety of cross-sectional studies has already examined the relationship between energy drink consumption and mental health problems like anxiety, depression, and increased feelings of stress.
Few to date, however, have done so longitudinally, meaning that causal relationships have been difficult to determine or demonstrate.
To remedy this, the present study looked at data from 897 individuals who have been followed from birth in the context of the previously published Raine study.
Questionnaires were given at age 20 and again at age 22 regarding, among others, energy drink consumption and mood.
The possibility of some upstream behavior or other element acting on energy drink consumption and depression and anxiety separately, however, is left largely unexplored.
The authors do note that the ingredients in energy drinks may exacerbate existing symptoms of anxiety, depression and stress. »
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