May Disease is a common kind of minor depression in Japan. Almost all students enter new schools or universities in April. Most new company employees also start in April each year. Then there is a long Golden Week holiday at the beginning of May. People return to their new school or job after a holiday, and it is not new or exciting anymore. May Disease describes this common feeling of disappointment or being let down.
May Disease in China is associated with subtle moods caused by all kinds of things. Some people blamed the laziness to the unpredictable weather, some are burdened by the graduation papers, or the coming important test, some feel anxious about their work performance earlier this year.