Education
From 1983 until 1989 he studied medicine at the universities of Freiburg and Heidelberg.
From 1983 until 1989 he studied medicine at the universities of Freiburg and Heidelberg.
In 2002, while continuing his career in research and management, the former marathon runner recommenced in competitive endurance sport. In 2008, after having successfully competed in several long-distance cycling, he finished the Race Across America in 10 days, 22 hours and 56 minutes to cover a distance of 3.000 miles between Oceanside, California, and Annapolis, Maryland. Out of 27 solo-participants he finished in seventh position.
Nehls devised a new regenerative strategy and rested a total of 91 hours, several times more than his competitors.