The fasting is known as spontaneous deprivation of eating any type of food, including drink water during a specific time. Fasting can be practiced for different reasons, religious, as a treatment for detoxification of the body, to show dissatisfaction with something, to lose weight, etc. The person who decides to fast must bear in mind that they may suffer some type of bodily decompensation and may run the risk of getting sick, of course this will depend on the duration of the fast, if it is an extensive fast the body It will not receive the necessary nutrients, causing an alteration in the structure and functioning of the organs, and where the person may run the risk of dying.
When fasting is done to lose weight, the person is convinced that fasting will lose weight, however, this can trigger health problems that lead to the person suffering from eating disorders such as anorexia. When fasting is for religious reasons, in some cultures they associate fasting as a manifestation of spirituality, as a way of sacrifice, of penance, in the face of temptations, during the time of fasting people dedicate themselves to prayer. In the Catholic religion, fasting is practiced during the first meal of the day, and only on specific days such as Ash Wednesday, and Good Friday.
Also when a person needs to have blood tests performed, it is essential that they fast, since there are some medical tests that require that the person have not eaten anything, since they need to obtain a sample with normal properties and some values can be modified if the person eat some food, for example cholesterol. When the fast is for reasons of protest, people do this type of fast when they want to show their disagreement for some reason, be it personal or social.