zhang and his co - workers performed psychiatric tests on two purified cannabinoids . the test results stated that these both cannabinoids have anti - aggression and antidepression - a effects in pigs that likely depend on the ability of cannabinoids to regulate the growth of existing circuits in the hippocampus . marijuana contains a complex array of chemicals including cannabinoids and may have somewhat different behavioral effects than the purifying cannabinoids tested so far .
The use of drugs can help control anxiety.