NALINNES, Belgium - A strict daily routine is the recipe for a long life, according to the world's oldest priest, Belgian Jacques Clemens, who will celebrate his 107th birthday on Monday.

Clemens, who has also celebrated his 80th anniversary as a Catholic priest, gets up every morning at 5.30 a.m. and goes to bed at 9.00 p.m.

When Clemens was about to retire at 75, his bishop asked him to remain in service until they found a successor - he only stopped holding regular church services at his parish in the southern Belgian village of Nalinnes last year.