Euthanasia, A persons right?

We as humans make choices throughout our adult lives, whether they be good or bad choices, we still have the right to decide, so why cant we decide when we want to die? If a person is terminally ill for example, isnt it better for all if the dying process is quick and as painless as possible, not to mention a lesser strain on medical resources. Yet we are not allowed to make this decision! There are many arguements against Euthanasia, such as life and death are Gods business, sometimes people dont know what is best for them, the lists goes on. Personally if i felt it was time to die, and needed assistance to do it, i would have no issues with asking for help, again like most of 'bad behaviour' isnt it just a persons choice??

The link below gives a more detailed arguements for and against Euthanasia.

http://www.bbc.co.uk/ethics/euthanasia/