It's the same thing as seeing pictures of people that you love, or don't like, and how they can affect your emotions at the time. Holidays are a good thing, and so we associate good fragrances with good things that make us feel better.
Chambers says research shows how odors affect our attitudes.
For example, peppermint is considered to be a bit of a stimulating odor. Herbs and spices have also been proven to make you feel more soothed and relaxed. Chambers says fragrances and deodorizers are more popular in the winter months. Things like holiday spice fragrances, candles or potpourri. However, you need to be careful of the aroma because it is something that everyone smells, and it can cause problems for people with allergies, he said.