Medium may refer to:

Communication

Natural science

The sixth season of Medium, an American television series, began September 25, 2009, and ended on May 21, 2010. It aired on CBS after NBC canceled the show after 5 seasons.

Plot

After five years on NBC, CBS picked Medium up on Friday nights between Ghost Whisperer and Numb3rs. Allison is finally out of her coma after suffering from a brain tumor on her brain stem and at first she can barely use her right hand, but as the season progresses she gets better and better. For the first few episodes Mrs. DuBois walks with a cane and does physical therapy. She got to keep her gift because she delayed the surgery from season 5 at the very end to catch Oswaldo Castillo. Allison's friend who was in the hospital with her (played by Martha Plimpton) dies under mysterious circumstances and Allison realizes it was the doctor who saved her life. The Halloween episode Bite Me is a take on Night of the Living Dead where Allison uses her dream to catch a killer no one would never suspect. Another greedy doctor creates a vaccine hoping to make millions by infecting people, but the courageous guy that the doctor gave it to, killed himself. Joe gets a new job, but to his dismay he gets to work with a very eccentric leader played by Joel Moore. After Terry (Joe's last boss) sold the company, the people that bought it out wanted to keep Joe on working thee days a week in San Diego, but when Allison got sick he had to resign his position. By now, all three girls are growing up with Ariel graduating high school. Allison learns a valuable lesson in one episode where she tries desperately to get Ariel to do the things she does, but soon realizes, Ariel has to live her life and move on and the college she wants to attend is Dartmouth College in New Hampshire. Lee and Lynn have a baby and decide to get married in the final episode.

Mediumship is the practice of certain people—known as mediums—to purportedly mediate communication between spirits of the dead and living human beings.

Attempts to contact the dead date back to early human history, with mediumship gaining in popularity during the 19th century. Investigations during this period revealed widespread fraud—with some practitioners employing techniques used by stage magicians—and the practice started to lose credibility. The practice still continues into the 21st century, with high-profile fraud uncovered as recently as the 2000s.

Scientific researchers have attempted to ascertain the validity of claims of mediumship. An experiment undertaken by the British Psychological Society led to the conclusion that the test subjects demonstrated no mediumistic ability.

Several different variants of mediumship exist; arguably the best-known forms involve a spirit allegedly taking control of a medium's voice and using it to relay a message, or where the medium simply "hears" the message and passes it on. Other forms involve materializations of the spirit or the presence of a voice, and telekinetic activity.