Cannabis grandfather Rapahel Mechoulam dies at 92

Raphael Mechoulam, TCH, medical cannabis, CBD
Raphael Mechoulam, discoverer of THC, CBD in medicinal cannabis

It hit me like a punch to the gut: the world pioneer in cannabis research, Prof. Raphael Mechoulam, known as the father of cannabis research died in Israel at age 92. His research in cannabis, on THC and CBD set off a chain reaction globally, recognising cannabis as medicine. His chemistry work on cannabis has helped physicians prescribe better medicine for wider indication. He’s inspired a new generation of biologists to study cannabinoids, the active molecules in cannabis, as medicine. 

I got to interview him some 15 years ago when I was working for the Jewish Telegraphic Agency and I appreciate the time he took and candidness in which he approached his interview. 

Professor Mechoulam was the first in the world to isolate the psychoactive substance in cannabis, THC, which affects the brain, consciousness, and creativity, as well as CBD, the plant’s most important substance for its known medical benefits. He did this when at the Weizmann Institute of Science but made the mainstay of his career at Hebrew University in Jerusalem.

He’d received dozens of awards, honors, and decorations throughout his life, including the Harvey Prize, EMET Prize, and Rothschild Prize.

In an article published in the journal Annual Reviews he shared “The endocannabinoid system has recently been revealed to us. Its involvement in a variety of biological processes is very broad, but the role of most of the substances that compose it, has not yet been studied. I want to emphasize that in the field of the endocannabinoid system, as in other fields, collaboration between scientists is a wonderful and useful thing for discovering new biological properties.”

“Working on cannabis was challenging and promising from a scientific perspective,” Mechoulam told me years ago. He had had support from the police, who provided the hashish (originating from police bans), and from the Ministry of Health, which gave the approval. The initial work was done at the Weizmann Institute and continued at the Hebrew University in 1966.

Prof. Asher Cohen, the President of the University, paid tribute to Prof. Mechoulam, “Most of the human and scientific knowledge about cannabis was collected thanks to Prof Mechoulam. He paved the way for a series of studies in the field and called for scientific collaboration among different researchers. He was a sharp-minded, groundbreaking, and charismatic intellectual. This is a sad day for the academic community, and I extend my heartfelt condolences to the family. May his memory be a blessing.”

Prof. Mechoulam was born in Sofia, Bulgaria in late 1930. after surviving the Holocaust he immigrated to Israel with his family in 1949. He began his journey at the Hebrew University with the completion of his second degree in biochemistry in 1953. Prof. Mechoulam began his research in cannabinoids at the Weizmann Institute in 1962 and then joined the Hebrew University in 1966, where he continued to study the compounds found in cannabis. He was appointed as a full-time professor in 1972 and in 1978 was appointed to the Lionel Jacobson Chair in Medicinal Chemistry.

Between 1979-1982, Prof. Mechoulam served as the Rector of the Hebrew University, and during his tenure, the Department of Computer Science was established. In 1999, Prof. Mechoulam was appointed as the President of the International Cannabinoid Research Society, a position he held until 2002. Additionally, he served as the Head of the Natural Sciences Division at the Israel Academy of Sciences and Humanities since 2007.

Karin Kloosterman
Karin Kloostermanhttp://www.greenprophet.com
Karin Kloosterman is an award-winning journalist, innovation strategist, and founder of Green Prophet, one of the Middle East’s pioneering sustainability platforms. She has ranked in the Top 10 of Verizon innovation competitions, participated in NASA-linked challenges, and spoken worldwide on climate, food security, and future resilience. With an IoT technology patent, features in Canada’s National Post, and leadership inside teams building next-generation agricultural and planetary systems — including Mars-farming concepts — Karin operates at the intersection of storytelling, science, and systems change. She doesn’t report on the future – she helps design it. Reach out directly to [email protected]

Read More

TRENDING

How Torvinen Jaakko’s ugly wood can lay the foundations for green building

Canada's forests generate billions of dollars in economic value each year, yet vast amounts of irregular timber are downgraded to wood chips or biomass. A collaboration between researchers at Carleton University and Aalto University is challenging that model, demonstrating how "ugly wood" can be transformed into high-value architecture while reducing waste and storing more carbon in buildings.

A Face Swap Tool for Training and Internal Comms

Corporate training videos often require repeated filming, travel, and production resources every time policies or personnel change. AI-powered face swap tools offer a more sustainable approach by extending the life of digital training content, reducing unnecessary reshoots, and helping organizations communicate more efficiently—provided they are used transparently with clear consent and ethical governance.

How a tick bite can lead to a life-threatening meat allergy AFG

Imagine developing a severe allergy to steak after a single tick bite. That's the reality for people with alpha-gal syndrome, a rapidly emerging condition linked to lone star ticks and other tick species. As researchers uncover how tick saliva rewires the immune system, health officials warn that hundreds of thousands of Americans may already be living with this unusual red meat allergy.

Russia’s Arctic superdeep oil drill revives debunked ‘infinite oil’ theory

Russia is reviving the controversial abiotic oil theory with plans to drill superdeep holes in the Arctic. While small amounts of abiotic methane exist deep within the Earth, most geologists reject the idea that commercial oil reserves originate from non-biological processes, raising questions about the environmental cost and scientific value of the project.

Code Red from the Galapagos: human drugs and sunscreen are polluting the sea

Millions of visitors swim in the pristine waters of the Galápagos each year, but new research suggests sunscreen chemicals and other human-made pollutants are reaching even the islands' most protected marine habitats. Scientists are calling for urgent monitoring to safeguard one of Earth's most iconic ecosystems.

Yerukim Forms a New Green Economy Where the Money is Really Green

The Yerukim members who pick up the recyclables get to keep the monetary reward, the public earns "green" bills that can be used in shops, and business owners get to be associated with environmentalism.

Choosing Riyadh over Dubai? What Investors Should Know

Saudi Arabia is deploying capital at unmatched scale to catalyze tourism and advanced industry while rewiring its power-and-water backbone. The investable frontier is widening—especially in renewables, grid storage, water efficiency/desal retrofits, and hospitality operating platforms. Prudent investors will insist on phased delivery, enforceable KPIs (energy, water, biodiversity), and RHQ/zone compliance—while pricing political-economy and reputational risks alongside growth upside.

Sell your cooking oil for biodiesel money

Want to make money on old french fry oil? Sell it.

Qatar Alternative Energy Summit Pairs Investors And Innovators

Alternative energy investors and innovators can meet n' greet in Doha, Qatar March 16 and 17.

Here’s How To Implement The Four Pillars Of Employee Engagement

If you throw a party for your work team and they are vegans, don't make it a barbecue. Know the sustainability values of your team to boost moral and retain good people.

Locals From Rishon Fight IKEA

Big Box stores are a pretty new concept in Israel, and thank God that not every Israeli city wants them in their backyard. A word from someone who has see the beautiful farmland around her hometown Newmarket, Ontario stripped and converted into vulgar strip malls of big box shops: they have no place in a healthy and sustainable town or city.

The Jewish National Fund Meets An Inconvenient Truth

According to the JNF, it has transformed thousands of acres of barren land into green forests in Israel. They state that each person emits about 23 tons of carbon per year, estimating that each tree planted can absorb one ton of carbon in its lifetime. That's a whole lot of trees you'd need to be planting. Could so many fit in Israel?

How to quiet noise from construction in your office

Streets need to be resurfaced in New York but the humming and grinding noise is unsettling. Noise is environmental pollution. 

Popular Categories