Ruderalis may be included within C.

Recreational use

The authors concluded that cannabis use, particularly by inhalation, may increase the risk of asthma and recommended monitoring respiratory health among cannabis users. Cannabis plants have been grown since at least the 3rd millennium BCE and there is evidence of it being smoked for its psychoactive effects around 500 BCE in the Pamir Mountains, Central Asia. Physical effects include increased heart rate, difficulty breathing, nausea, and behavioral problems in children whose mothers used cannabis during pregnancy; short-term side effects may also include dry mouth and red eyes. Tetrahydrocannabinol (THC) is the main psychoactive component of cannabis, which is one of the 483 known compounds in the plant, including at least 65 other cannabinoids, such as cannabidiol (CBD). That country’s new regulations included licensing marijuana growers to produce the drug for individuals with terminal illnesses or chronic diseases.

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• He also said that while this review highlights cardiovascular risks, other research has also shown there is “actually no statistically reliable evidence to suggest that cannabis users suffer more cardiovascular risk, including no effect on hypertension, myocardial infarction, and presence of coronary atherosclerosis.”
• However, many taxonomists found these putative species difficult to distinguish.
• Various cannabis strains have been bred, often selectively to produce high or low levels of tetrahydrocannabinol (THC), a cannabinoid and the plant’s principal psychoactive constituent.
• Renewed decriminalization efforts in the 1990s led to the legalization of medicinal marijuana in more than a dozen states, including Alaska, Arizona, California, Colorado, Nevada, Oregon, and Washington.

Researchers are still learning about the long-term effects of marijuana use. Studies show that marijuana use has certain short-term and long-term effects. Because of this, healthcare providers can’t prescribe marijuana. Regardless of what you call it, cannabis has a range of short- and long-term effects, which can be both beneficial and harmful. Many more large, long-term studies in humans are needed to fully understand the lasting effects of cannabis use. Experts are still trying to fully understand the long-term effects of using cannabis.

Cannabis use disorder

The main psychoactive component of cannabis is tetrahydrocannabinol (THC), which is formed via decarboxylation of tetrahydrocannabinolic acid (THCA) from the application of heat. The high lipid-solubility of cannabinoids results in their persisting in the body for long periods of time. Via CB1 receptor activation, THC indirectly increases dopamine release and produces psychotropic effects.

What is cannabis?

In the US, “industrial hemp” is classified by the federal government as cannabis containing no more than 0.3% THC by dry weight. Many countries regulate limits for psychoactive compound (THC) concentrations in products labeled as hemp. However, hemp can refer to any industrial or foodstuff product that is not intended for use as a drug. Common side effects include dizziness, feeling tired, vomiting, and hallucinations. Short-term use increases both minor and major adverse effects.

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However, many taxonomists found these putative species difficult to distinguish. The genus Cannabis was first classified using the “modern” system of taxonomic nomenclature by Carl Linnaeus in 1753, who devised the system still in use for the naming of species. It remains controversial whether sufficient morphological and genetic divergence occurs within the genus as a result of geographical or ecological isolation to justify recognition of more than one species. This is a contentious issue because there is no universally accepted definition of a species.

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• He said that what is “important” about this review is that it helps “counter the messaging from cannabis treatment advocates, who promote the good news, and the hopes, without balance or caution.”
• Ainsworth describes sex determination in the genus as using “an X/autosome dosage type”.