The change of seasons
When you turn the rages of calendar months and seasons follows each other one by one. And this is the Monday and it is spring and the next day is Tuesday and it is already summer. Though, it is how the calendar built and it is impossible for seasons to change in one night just like that. In the nature things happen more slowly and it takes more than one night for summer to replace spring and for fall to replace summer and so on and so forth. And when such changes happen, people feel those. People feel changes of nature though they rare realize that what is going on are changes. But, they have their mood changed and their behavior and everything. That is why people sometimes immerse into depression when autumn replaces summer. They feel that the weather is changed and sun is not as bright as it used to be and they feel that nature is preparing for its rest. This is the change of seasons and that is what people feel and that is the reason for changes of mood of people. Though, in order to overcome those changes good people have to find some hobby that would help them to get more emotions.