Scientists find out many things affect（影响） our feelings. Many things can affect our personality（性格） and the actions of others. You may be surprised to know the weather can also affect your feelings.
People often say they feel good when it's sunny and they feel sad when it's cloudy. In fact，sunlight makes us feel happy. When sunlight hits our skins，our bodies get vitamin D（维生素 D），the winter in Sweden（瑞士） and Norway（挪威），so many people there often feel sad. The governments（政府） build special"sunrooms"for people to get"sunlight"for an hour or two!
The weather can affect our feelings in other ways as well. Rain can make people angry because being wet makes people unhappy. In the same way，hot weather can make people angry because the hot weather makes people feel terrible. As you can see，the weather can affect our feelings. Sadly（改变） us，we cannot change the weather.
