British explorer Sir Ranulph Fiennes (R) receives a blood test after he
finished a marathon run in Singapore, October 30, 2003, on the fourth
leg of his bid to run seven marathons in seven days on seven
continents. Fiennes, 59, described by the Guinness Book of Records as
the "World's Greatest Living Explorer" is attempting his feat less than
five months after suffering a near fatal heart attack. REUTERS/David
Loh

DL/RCS