Anointing of the sick

Anointing of the Sick is a sacrament (a sacred ceremony) in Roman Catholicism and other Christian denominations. It is given to people who are "in danger due to sickness or old age". 
A person does not have to be dying to receive the Anointing of the Sick. It can be done for anyone with a medical problem which they could die from.
Anointing of the Sick is also called Unction. In the past, it was called Extreme Unction. ("Anointing" and "Unction" are both words for putting oil on a person. Oil is an important part of the ceremony.)
Beginnings.
All four Gospels in the Bible say that Jesus healed many people. Catholics believe that even after his death, Jesus is still able to heal people through the power of the sacraments.
The main part of the Bible that talks about anointing of the sick is : "Are any among you sick? They should call for the elders of the Church and have them pray over them, anointing them with oil in the name of the Lord. And their prayer offered in faith will heal the sick, and the Lord will make them well. And if they have committed sins, these will be forgiven." , and also talk about the anointing of the sick.
The sacrament.
The Anointing of the Sick sacrament is done by a priest. The priest brings oil, which he has blessed. Usually, the oil is olive oil or another pure plant oil. The priest rubs the blessed oil on the patient's forehead, and sometimes other parts of the body. While he does this, he says special prayers that are meant for the Anointing of the Sick sacrament. 
Catholics believe the Anointing of the Sick sacrament can:
Several other Christian churches have similar rituals.
Last rites.
The Anointing of the Sick is one of the three sacraments that make up the last rites. In Catholicism, last rites are a set of sacraments that are given to people who are dying. 
The steps in the last rites are: