Complex sentence: Jennifer Widerstrom (born August 24,1982) is an American fitness model and personal trainer, who appears as a trainer on the American version of the television series "The Biggest Loser", replacing Jillian Michaels.
Split into simpler sentences: Jennifer Widerstrom (born August 24,1982) is an American fitness model and personal trainer. She appears as a trainer on the American version of the television series "The Biggest Loser", replacing Jillian Michaels.