Buddhism and Chinese folk religions
Chinas family laws were changed by the Communist revolution; and in 1950, the Peoples Republic of China enacted a comprehensive marriage law including provisions giving the spouses equal rights with regard to ownership and management of marital property. Other cultures
In Japan, before enactment of the Meiji Civil Code of 1898, all of the womans property such as land or money passed to her husband except for personal clothing and a mirror stand. Expectation of fidelity
Although there is generally an expectation for a spouse not to have sexual relations with anyone other than his spouse(s), historically, in most cultures, this expectation was not as strong as in the case of wives, a situation which was evident in legal codes which prohibited adultery, with male adultery often being criminalized only if "aggravating" circumstances existed, such as if he brought his mistress into the conjugal home, or if there was public scandal. The double standard was also evident in divorce laws of many countries, such as the UK or Australia, which differentiated between female adultery, which was a ground of adultery by itself, and male adultery, which was a ground only under certain circumstances. This double standard continues to be seen today in many parts of the world.
The effects of cannabis are caused by chemical compounds in the cannabis plant, including 113 different cannabinoids such as tetrahydrocannabinol (THC) and 120 terpenes, which allow its drug to have various psychological and physiological effects on the human body. Different plants of the genus Cannabis contain different and often unpredictable concentrations of THC and other cannabinoids and hundreds of other molecules that have a pharmacological effect, so that the final net effect cannot reliably be foreseen. Acute effects while under the influence can sometimes include euphoria. Although some assert that cannabidiol (CBD), another cannabinoid found in cannabis in varying amounts, may alleviate the adverse effects of THC that some users experience, little is known about CBD effects on humans. Cannabinoid receptor antagonists have previously been tested as antidotes for cannabis intoxication with success, reducing or eliminating the physiological and psychological effects of intoxication. Some of these products are currently in development as cannabis antidotes. In the United States, medical cannabis research is limited by federal restrictions. Smoking any substance could possibly carry similar risks as smoking tobacco due to carcinogens in all smoke, and the ultimate conclusions on these factors are disputed.Cannabis use disorder is defined as a medical diagnosis in the fifth revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Chemistry
Cannabinoids and cannabinoid receptors
The most prevalent psychoactive substances in cannabis are cannabinoids, particularly THC. Some varieties, having undergone careful selection and growing techniques, can yield as much as 34% THC.