Question: What makes us like things more than someone else? Is it to do with our DNA?

Josh Meyers answered on 24 Jun 2015:

Nobody really knows.

It is certainly partly to do with our DNA.
Some people taste things differently because their DNA is different and therefore they might be more/less likely to like that food.
Our DNA can also affect the chemicals in our bodies. Dopamine is a chemical which makes us feel rewarded and relaxed. If our dopamine levels are high when we are listening to a particular song, we might be more likely to like it.

Most people agree that the things we like are also due to our experience. Our ‘environment’ can determine who we are. If I go to the mountains with my parents for christmas every year. The mountains are going to be associated with holidays and fun times. I might like mountains more than the next person!

A clever psychologist called Pavlov did an experiment on dogs where he rang a bell every time they ate. Then when he rang the bell, they were expecting food and began to salivate. They have experience that tells them to like the bell!