Feeling rewarded

According to a 2008 study, dopamine is responsible for feelings of accomplishment and rewards, but it's also been linked to averse emotions like fear and dread.

People who enjoy fearful or risky situations tend to get more out of being scared out of their wits because they end up with higher levels of dopamine. Adrenaline, which is also released during dangerous moments, is also perceived as enjoyable by some.