Complex sentence: Paul M. Kimelman (born 1946) a motivational speaker in the 1980s and early 1990s held the world-record for the greatest loss of weight in the shortest amount of time.
Split into simpler sentences: Paul M. Kimelman (born 1946) a motivational speaker in the 1980s and early 1990s. He held the world-record for the greatest loss of weight in the shortest amount of time.