Besides, because of the lack of sunlight, people suffer from stress, nothing can make them happy, they also suffer from insomnia. If a person is not glad with anything, suffers from insomnia, and blames himself for anything, he has a depression.
You can easily put yourself in a good mood. Experts advise to eat chocolate, do shopping, dress in bright colors, or fall in love. If it does not help, it’s better to consult a psychologist.