The Israel scientist Raphael Mechoulam has been researching what’s thought to be the world’s most popular drug since the 1960s. In 1964, he isolated Tetrahydrocannabinol, or THC – the compound that gets cannabis-users high. Later, professor Mechoulam discovered another compound called CBD, or Cannabidiol, which has medical benefits without any kind of psychoactive effect. Recently, CBD has had a revolutionary impact on treating health conditions such as epilepsy. Prof Mechoulam talks to Claire Bowes.(Photo: A marihuana plant in India. Credit: Getty Images)

The Israel scientist Raphael Mechoulam has been researching what’s thought to be the world’s most popular drug since the 1960s. In 1964, he isolated Tetrahydrocannabinol, or THC – the compound that gets cannabis-users high. Later, professor Mechoulam discovered another compound called CBD, or Cannabidiol, which has medical benefits without any kind of psychoactive effect. Recently, CBD has had a revolutionary impact on treating health conditions such as epilepsy. Prof Mechoulam talks to Claire Bowes. (Photo: A marihuana plant in India. Credit: Getty Images)

The chemistry of cannabis

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken.We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: the moment Reagan and Gorbachev met in Geneva, Haitian singer Emerante de Pradines’ life and Omar Sharif’s legendary movie entrance in Lawrence of Arabia.You can learn all about fascinating and surprising stories, like the invention of a stent which has saved lives around the world; the birth of the G7; and the meeting of Maldives’ ministers underwater. We cover everything from World War Two and Cold War stories to Black History Month and our journeys into space.

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Personal Journals

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: the moment Reagan and Gorbachev met in Geneva, Haitian singer Emerante de Pradines’ life and Omar Sharif’s legendary movie entrance in Lawrence of Arabia. You can learn all about fascinating and surprising stories, like the invention of a stent which has saved lives around the world; the birth of the G7; and the meeting of Maldives’ ministers underwater. We cover everything from World War Two and Cold War stories to Black History Month and our journeys into space.

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The chemistry of cannabis

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