There has been little to no scientific research on the effects of weed on hangovers. However, there is plenty of anecdotal evidence to suggest that weed can help with many hangover symptoms (weed will not cure a hangover directly). The best way to “cure” a hangover is to rehydrate your body, restore the nutrients it has lost, and rest. Before looking at whether or not weed helps with a hangover, it is important to understand what causes a hangover. Here are some of the factors that contribute to a hangover, according to the Mayo Clinic: DEHYDRATION. Alcohol is a diuretic, which causes you to urinate more frequently and sweat more. DECREASED APPETITE, INABILITY TO CONCENTRATE, AND MEMORY ISSUES. Alcohol can...