For those who always wanted to learn curanderismo, or the art of traditional healing, you're in luck.

The University of Mexico will be offering a free online class on the topic as a Massive Open Online Course. It is a spin-off from its traditional curanderismo class, which is offered every summer, Fox News Latino reported.

The class will be taught by Eliseo "Cheo" Torres and other traditional healers from Mexico, Peru and New Mexico. The course will show how traditional medicine fits in with indigenous people.

Curanderismo, which uses herbs and plants to treat illnesses, has expanded from just being practiced in Mexico and throughout Latin America to places like New York, south Texas, Arizona and California.

Poor Latinos may have helped curanderismo maintained its popularity, anthropologists believe. Now, there's other groups of people that are interested in the practice because it offers an alternative to traditional medicine. Some people turn to curanderismo after traditional medicine has failed.

The practice includes prayer, herbal medicine, healing rituals, psychic healing, spiritualism and massage. It has been used to treat cancer, though there is no scientific evidence to support it. It has been said to help with alleviate pain and symptoms, according to the American Cancer Society.

Curanderismo is also said to protect against bad luck.

Curanderos use a balance of hot and cold to maintain good health, which is why they try to find out a person's diet, drug use and illnesses to reach a state of balance once again.

The practice began after the Spanish colonization of Mexico, and it takes its name for the Spanish word heal, which is curar.

Though it's not backed up by science, some believe that curanderismo should be looked at more closely.

"Researchers proposed that a better understanding of folk medicine, such a curanderismo, might help physicians treat patients more effectively and understand patients' fears and beliefs," the American Cancer Society said.