Although humans need food to survive, food sometimes does not sit well in our stomachs. Whenever the food does not sit well, our stomachs tend to hurt and we may throw up the contents of our stomachs. It is possibly-possible to gain a negative food aversion from throwing up, or from a painful experience after consuming certain foods. We are then triggered to feel a sense of pain whenever we smell it, or even sometimes see it. When I was younger, I had eaten pickles, more than an 8-year old should have. So, later that night, I threw up, which was mainly pickles and water. The next 8 years, I avoided pickles. I had unintentionally classically conditioned my body into avoiding pickles. The unconditioned stimulus (UCS) would be eating pickles in
