White Dew, (Chinese: 白露), the 15th solar term of the year, began this year on Sept 8 and ends on Sept 22. It begins when the Sun reaches the celestial longitude of 165°and ends when it reaches the longitude of 180°. The name of white dews means that the temperature is gradually getting lower and white dews can be seen on grass leaves and tree leaves. At this time, people will feel that the hot summer has been replaced by cool autumn, and there is a big temperature difference between day and night. During the white dews period, diseases such as nasal disease, asthma and bronchopathy should be prevented carefully, and it's better to keep a balanced and light diet which is rich in vitamins. For more information, please read: 10 things you may not know about White Dew.[Photo by Wang Jin/Palace Museum]