Off-label use of “cognitive enhancement” drugs such as those used to treat narcolepsy is a real concern in Silicon Valley, reports CNN Money.

Asprey’s morning dose is a mix of what’s referred to as smart drugs, a broad term for compounds that may increase cognitive function. He also describes many of them as nootropics, which generally refer to natural supplements or nutrients. The terms are often used interchangeably.

The wide umbrella includes everything from fish oil to prescription-only medications like Modafinil, a narcolepsy drug that healthy people sometimes use for the off-label purpose of working all night long.