Underground solitary

An Italian sociologist Maurizio Montalbini will spend three years in an underground cave as part of a study on human functions when deprived of natural light. Montalbini has twice before lived underground (and holds the world record for doing so) but not for this long. He will live much like an astronaut, though with some favorite foods and a library of 85 books. URL:
http://edition1.cnn.com/2006/WORLD/europe/10/13/tbr.numbers.caveman/;
http://english.people.com.cn/200610/15/eng20061015_311869.html.