People with other illnesses should consult a physician and a rabbi for advice. Most of the holiday is spent in the synagogue , in prayer. People then usually go home for an afternoon nap and return around 5 or 6 PM for the afternoon and evening services, which continue until nightfall. The services end at nightfall, with the blowing of the tekiah gedolah, a long blast on the shofar. See Rosh Hashanah for more about the shofar and its characteristic blasts.
Some people wear a kittel, the white robe in which the dead are buried .
Yom Kippur Liturgy See also Jewish Liturgy generally. The liturgy for Yom Kippur is much more extensive than for any other day of the year. Liturgical changes are so far-reaching that a separate, special prayer book for Yom Kippur and Rosh Hashanah . This prayer book is called the machzor. The evening service that begins Yom Kippur is commonly known as Kol Nidre, named for the prayer that begins the service.