What
 if you could take a psychedelic drug regularly in such tiny quantities 
that the immediate effects were not discernible, yet over time it led to
 a range of psychological benefits, especially enhanced focus and 
heightened creativity? That’s the principle behind “microdosing” – a 
controversial technique that’s exploded in popularity ever since the 
publication of a 2011 book The Psychedelic Explorers Guide and a 2015 
Rolling Stone article titled How LSD Microdosing Became The Hot New 
Business Trip. Large online communities of microdosing enthusiasts have 
since emerged on sites like Reddit, where dosing tips are shared and the
 supposed manifold benefits of the practice are espoused.
However,
 actual scientific investigations into the effects of microdosing can be
 counted on one hand. Earlier this year, PLOS One published one of the 
few systematic investigations ever conducted into the practice, by Vince
 Polito and Richard Stevenson at Macquarie University. Though 
exploratory and tentative due to “legal and bureaucratic” obstacles 
(meaning there was no placebo control or randomisation in this 
research), the results suggest that microdosing can be beneficial, 
although not in the ways that users most expect, and not necessarily for
 everyone.