Which Brain Boosters Really Work
Getty Images Joanna Helmuth, M.D., a neurologist at the University of California San Francisco’s Memory and Aging Center, is concerned. She’s worried about vulnerable people like vapenaysh6969, a Reddit user who recently asked for advice on the Nootropics subreddit, a message board where more than a quarter of a million people are trying to sort their way through all of the allegedly brain-boosting chemicals on the market. “Ordered some phenylpiracetam,” vapenaysh6969 wrote. “In desperate need of some motivation after being unemployed for a year now.” Dr. Helmuth has studied the...