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Since among Hollywood actors, getting treated for depression is far less stigmatizing than paralyzing your facial muscles with a load of botulinum toxin, perhaps they'll all stop lying about being "scared of needles" now that Botox is officially a mood enhancer. According to a study published in the Journal of Cosmetic Dermatology, people who have Botox, and therefore lose the ability to frown, report lower levels of depression, anxiety and irritability—the theory being that the actions of facial muscles directly influence brain activity. So presumably Janice Dickinson's rages and histrionics are just for the TV cameras, and she's a picture of serenity and composure in real life.