Are Human Beings The Biggest Risk Factor In Long-Term Space Missions

Scientist believe that the biggest rick factor involved with future space missions, whether it is to the moon, space stations or even Mars, that the biggest issue is going to be the humans themselves. Not only the physical stresses on the human body but also the psychological stresses as well. Givin the conditions of current space travel, being trapped in a small room for long periods of time with the same people day after day, someone is bound to go stir crazy!