Taste aversion is something that almost every person goes though in their lives. For some it lasts for years or their whole lives, while others only experience it for short periods of time. Taste aversion is what happens when humans have aversion to tastes (foods) they have become sick from. Sometime this correlation can be used for good while commonly taste aversion happens on its own.
An example in my life when taste aversion used to get a positive outcome was when I was younger (7 years old) and still sucking my thumb. My mother noticed this and to help me stop put nail polish and other bad tasting items onto my thumb at night in order for me to make the association of the bad taste every time I went to suck my thumb. This eventually was successful in getting me to stop sucking my thumb. After a few days of going to suck my thumb and tasting the awful things on my thumb I developed a taste aversion towards doing it. This overall process of classical conditioning with taste aversion is what led me to the end of my thumb sucking.
A classic example of taste aversion is when a person eats a bad tasting food and then decides not to eat the food again. This is a situation that I believe happens to all people more often than they realize. For example: when I went out to eat at a Chinese buffet. When people go to a buffet for the first time they commonly try everything that looks appealing or without knowing the taste. In multiple occasions I would get something that looked interesting but turned out to be extremely bad. I automatically developed a taste aversion towards that particular food and never attempted to try it again, even every other time I would return to the restaurant I would not try it. Taste aversion is real and occurs more often they we notice.