Creatine, ADHD video games: The quest for a better brain is turning into a gold rush

Getty Images; Tyler Le/BI

At this point, you've probably at least thought about dropping a few scoops of creatine into your morning smoothie. An amino acid compound that promotes energy production in brain and muscle cells, it's been a gym staple for building muscle for decades. In recent years, researchers have started to unpack creatine's potential cognition-boosting benefits, including promising early studies for sleep-deprived people and Alzheimer's patients.

At the Vitamin Shoppe...