Linked inTwitter

Part consultancy, part thinktank, part social enterprise, Halcyon helps you prepare for and respond to personal, organisational and societal change.

Halcyon's 52:52:52 campaign on Twitter will help you address 52 issues with 52 responses over 52 weeks.

To be a catalyst is the ambition most appropriate for those who see the world as being in constant change, and who, without thinking that they control it, wish to influence its direction - Theodore Zeldin


Halcyon Addiction Headlines
Halcyon Identifies 31 March 2019


Halcyon curates the most significant addiction content from carefully selected sources. Please contact us if you'd like our help with addiction-related challenges.

What's Changing? - Addiction

blog image


Please see below selected recent addiction-related change.


See also: Halcyon Addiction Headlines


March 2019

  • The Economist pointed to a study showing that regular use of potent cannabis, with levels of tetrahydrocannabinol above 10%, increases the risk of developing psychosis five-fold. The study, which looked at weed smoking in a group of patients newly diagnosed with psychosis, formed part of a growing body of evidence linking cannabis use to mental-health problems in Europe. In London, 30% of new cases of psychosis in the study were reckoned to be linked to strong cannabis.


February 2019