About: http://webisa.webdatacommons.org/295988105

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Also, since they no longer need to resist gravity, the muscles, including the heart, gradually weaken, as do the bones, which lose density because they no longer need to bear any weight.
http://www.w3.org/ns/prov#wasQuotedFrom	worldalmanac.com