Modern surgical techniques may allow a replacement bladder to be fashioned in some patients, giving back a degree of urinary control, and doctors are constantly improving these.
Although more than half of Harvard undergraduates end up in law, medicine or business, future doctors and lawyers must study a non-specialist liberal-arts degree before embarking on a professional qualification.
The document also gives you an option to say whether you want doctors to be "positively certain, " "certain to a high degree" or "reasonably certain" that you will never recover before pulling the plug.