tetra said:
Humans need other humans. Babies raised in controlled conditions in which they receive only food, water and shelter, and no human contact, die very quickly. Their immune system is greatly weakened without contact and they die. (Yes, people actually did studies like this with human babies, for more about this, see Howard Bloom's excellent book The Lucifer Principle)
So, humans need food/water, shelter, and other humans. Everything else is icing on the cake.
Yes, human contact is of vital importance. But it´s also important that this contact is not just in the form of physical presence (of the babies parents for instance). Humans need eachothers aproval. People need to be apreciated by others. You can actually see it on a brainscan when a person hasn´t been loved by his/her parents as a child.
The vast majority of adults is alo not capable of dealing with (social)isolation. That´s why solitudal isolation is also considered a form a torture by most human rights organisation. People realy get severe psychiatric disorders, become psychotic or suicidal.
A very tragic story is that of soviet dissidents who managed to escape from their prison in siberia.
Siberia is so incredibly big, that you can literally walk around there for years, without ever seeing anybody.
Many of these dissidents who managed to withstand the most brutal forms of torture and the hard live in the siberian prisoncamps, eventually succombed to the madness of isolation, if they managed to escape.
There is the story of one man who didn´t went mad. I don´t remember his name. He knew that there was the chance of going mad as a result of isolation, so he did all kind of `social exercises` like talking to trees or animals.
Human relations are of crucial importance for our survival.
That´s also why things like I-phone´s are so important to many people: people need to have the feeling that they belong to a group and that they´re apreciated and respected. They don´t realy need those I-phones or the rolexes, etc.
But when they live in an environment where having such things are a factor for apreciation, trying to obtain such goods will become almost a vital psychological urge, an obsession that is hard to fight.
So it´s clear that the line between basic needs and non-basic needs is not as sharp as a simple biologist would maybe say.
But it also shows another basic need: all humans have a basic need for justice and fairnes. They need a social structure around them with rules that are ethically sound.
The early sociologist durkheim has made a study on suicides and concluded that living in a social structure that is either too tight or too loose, increases the amount of suicides (just google 'durkheim' 'suicides' and you will see it somewhere.
With the science of durkheim, you would expect that suicides would increase currently in countries lie greece. and indeed, they do. From very low suicide rates, greece is now a country with one of the highest suicide rates in the western world.