While looking at a product label might tell a person the 'precise potency' of THC in a store where marijuana is legally sold, 'people buying cannabis illegally may not be able to access reliable information about the potency of the product they are using,' Freeman said. This yearly rise in potency may not be clear to consumers, experts fear. Concentrated products can reach extremely high levels of THC. In cannabis resin, the sticky brown sap on the plant from which extracts and concentrations are made, THC levels increased by approximately 5.7 milligrams each year from 1975 to 2017, the study found.

In a gram of herbal cannabis, the dried and harvested tops of female marijuana plants that are typically smoked, THC concentrations increased by approximately 2.9 milligrams each year, according to a 2020 study by Freeman and his team at the University of Bath. In addition, 'a report by the United Nations found that in the past two decades, the proportion of people seeking treatment for cannabis addiction has risen in all world regions apart from Africa,' he said.

The European Monitoring Centre for Drugs and Drug Addiction found a 76% rise in people entering treatment for cannabis addiction over the past decade, 'while cannabis potency continued to rise during the same time,' Freeman said. In the United States, about 3 in 10 people who use marijuana have cannabis use disorder, the medical term for marijuana addiction, according to the U.S. 'One of the highest quality studies included in our publication found that use of high potency cannabis, compared to low potency cannabis, was linked to a four-fold increased risk of addiction,' said study coauthor Tom Freeman, a senior lecturer in the department of psychology and director of the addiction and mental health group at the University of Bath in the United Kingdom, in an email. That amount is said to produce a mild intoxication for nonregular users. Scientists have established a ' standard THC unit' of 5 milligrams of THC for research. Museum members and children 5 and under are always FREE.Higher concentrations of tetrahydrocannabinol or THC - the part of the marijuana plant that makes you high - are causing more people to become addicted in many parts of the world, a new review of studies found.Ĭompared with people who use lower-potency products (typically 5 to 10 milligrams per gram of THC), those who use higher-potency cannabis are more likely to experience addiction and mental health outcomes, according to the study published Monday in the journal Lancet Psychiatry. We always recommend confirming details before attending.Īll are welcome CostSuggested donation: $2 per visitor / $5 per family. The park is located at 47300 Rancho Higuera Rd. Museum members and children 5 and under are always FREE. Suggested donation: $2 per visitor / $5 per family.

In order to comply with county guidelines regarding Covid-19, we ask that you maintain a social distance of 6 feet or more from people outside of your household as well as utilize a proper face covering on the property. Questions? Call us at 51 or email us at 10 am – 12 noon on the 2nd Saturday of each month, weather permitting. The original adobe home was constructed in 1840. Visit this culturally significant site, with a history extending back to Fulgencio Higuera a descendent of Jose Higuera who came to California from Spain on the de Anza expedition (1775-1776). The view of Fremont and its surroundings is spectacular from this particular spot. Rancho Higuera Historical Park and its beautifully restored adobe are open for tours and visitors. Rancho Higuera Historical Park 47300 Rancho Higuera Road Fremont CA 94539

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