It may be rational to choose not to live - but I don't agree that a lot of people are likely to be in such a situation. Many people may find that temporarily life is pretty bad and, if you are in that situation, your range of possible options seems to decrease. However, suicide is a permanent solution (as far as we know) to a temporary problem. If life is that bad, usually the best thing to do is to talk it over with someone - a friend, a minister, family, a therapist or anyone who will listen - not to get solutions from them but to enable you to explore your feelings and to come up with your own solutions. I volunteer with a group called Samaritans (www.samaritans.org) - if you find your life is not worth living, you could do worse than contact them - it might not make any difference - but, then again, it might.....