Are you stressed about finals? You should find a bench on a busy street and breathe in the fumes.
A study conducted at Tel Aviv University showed that carbon monoxide emissions from cars lead to less stress, according to Environment News Network. They sent people out into crowded areas and tested reactions to noise, weather, pollution, and crowds. Those exposed to carbon monoxide were the most likely to relax and enjoy their time in the city.
Who would have thought that toxic fumes can leave you light-headed and worry free? Except, perhaps, the college students out there who long ago turned to similar forms of relaxation. But at least this is free and legal.