Air humidity and temperature affect how comfortable we feel in different seasons. A study looked at how people feel in different humidity and temperature conditions. They found that humidity doesn't affect comfort much in neutral or slightly warm weather, but it does make a difference in hot or cold conditions. Low humidity makes us feel colder in winter, while higher humidity makes us feel better in summer. The study also showed that our breath affects how we feel - the more heat we lose when we breathe, the less comfortable we are. This information can help design better indoor environments and save energy.