Silicon Valley loves nootropics. But the 'brain boosters' aren't always what they claim.

It turns out that neurohacking your brain is not quite the same as hacking a machine.

Search for ways to improve focus or memory on Google, and you might run into powders and tablets with names like "Alpha Brain" or "Neuro Peak." These products are known as nootropics, a broad class of supplements that claim to boost cognition. The substances have been popular in Silicon Valley for years among tech workers trying to "optimize" their performance as human beings, or simply get an edge in the grind of the coding world. Students burning the midnight oil, or elderly people looking to improve their memory, also use nootropics. Read more...