Fear is a challenge because the person is not going to want to do it since they are scared. If you can overcome the fear then you have won that challenge.
The best way to face fear is to overcome that fear itself as a challenge. The more you avoid it the intenser the fear becomes.
Grendel responded with fear to the realization that Beowulf would challenge his fighting skills.
The Man and the Challenge - 1959 Man Without Fear 1-14 was released on: USA: 19 December 1959
Running in the New York City Marathon was a (challenge) that Nina felt ready to overcome.
It could be Kosmimaphobia which is a fear of jewels.
You could find another fear to cure the fear of pain.
It could be Papyrophobia which is the fear of paper.
SHE HAD 2 CLIMB UP A LADDER INTO A HELICOPTER ABOVE WATER WHILE ROTATING. WATCH IT ON YOUTUBE (WWF FEAR FACTOR)
NO, it is not a challenge because it could happen.
Grendel feels threatened by Beowulf's challenge and becomes anxious. He is filled with fear, as he knows Beowulf is a formidable opponent who poses a significant challenge to his fighting skills.
could fall under zoophobia, a fear of animals
Keith and Sarah quit Fear Factor during the "Daredevil Diving" challenge because they felt overwhelmed by the intense fear and anxiety associated with the stunt. The challenge required them to jump from a significant height into a body of water, which proved to be too much for them. Ultimately, they decided that the risks and their discomfort outweighed the desire to continue competing for the prize.