In general, nasal mucus is clear and thin, serving to filter air during inhalation. During times of infection, mucus can change color to yellow or green either as a result of trapped bacteria or due to the body's reaction to viral infection.
As such, there is to be no work done on this day. There are other restrictions, as well. Unless health dictates otherwise, Yom Kippur is observed by a 25-hour fast that begins prior to sunset on the evening before Yom Kippur and ends shortly after nightfall on the day of Yom Kippur. During this time, you are not allowed to consume any food or beverage, including water.
2) Yom Kippur is considered to be the holiest day of the year for the Jewish people. Its central themes are atonement and repentance. The name âYom Kippurâ literally means âDay of Atonement,â and it is a day set aside to âafflict the soul,â to atone for the sins of the past year.