The council will still be advised by panels of experts from different areas of the arts but their chairmen will no longer serve on the body and will lose their decision-making powers.

BBC: Angel of the Arts Council

Benedict said Monday he was stepping down because he simply no longer had the strength in mind or body to carry on.

NPR: Vatican Sends Message: Pope's Retirement For Real

Autoimmune diseases are a family of debilitating illnesses caused when the body can no longer distinguish between itself and foreign entities, and so turns on its own tissues.

ECONOMIST: Scientific justice

He has suffered a number of injuries over the past few years, most notably a rotator cuff problem in 1997, and does not think his body is capable of meeting the demands of five-day cricket on a regular basis any longer.

BBC: Srinath cool over comeback