But scientists who advocate ‘microdosing’ claim that taking smaller doses of LSD in the morning can help people focus on work – and even perform better at sport.

A popular Reddit forum claims that dosing with 10-15 micrograms of the powerful hallucinogen (the normal dose is 100 micrograms plus) doesn’t cause hallucinations – but offers energy instead.

In an in-depth feature on Alternet, psychedelics advocates including 65-year-old businesswomen claim that the drug offers a useful boost.

Psychedelics researcher Dr James Fadiman – who worked with LSD until it was banned until 1966 – said, ‘“Micro-dosing turns out to be a totally different world. As someone said, the rocks don’t glow, even a little bit.

Fadiman claims that users enjoy incresed focus, emotional clarity and creativity.

‘But what many people are reporting is, at the end of the day, they say, ‘That was a really good day.’ You know, that kind of day when things kind of work.