They checked during the nine years whether home abuses or family violence cases had occurred. Just one year after marriage, 37.1% of the husbands had become physically aggressive, with cases or suspicions of violence. But none of these cases occurred in couples who claimed to consume marijuana regularly.
According to the researchers:
The habitual consumption of marijuana in a couple prevents cases of violence, both by man and woman, at least in the first nine years of marriage. Those with the lowest risk are couples who both smoke regularly. This has led researchers to deny marijuana with alcohol, as it seems that the effects of these two substances within the relationship are diametrically opposed.
Always according to a researcher:
Marijuana seems to relieve emotional responses to threatening stimuli, resulting in a low chance of aggressive behavior.
Many research projects are now in the process of studying this case more thoroughly.