One problem for believers in heaven (or the afterlife in general) is how people look in that place. Most people die when they are, frankly, not at their best. They are either very old, otherwise decrepit, have had some serious illness that ravaged their bodies or died violently and in the process have been disfigured.
Very few people die peacefully in the prime of their lives, except as a convenient plot device in Victorian novels where a broken heart was often enough to cause a young person to kick the bucket. And yet people like to think that in heaven they look terrific and will remain so for eternity. So how do they get back what they lost before they died?
It looks like there must be some kind of system like the one below to deal with that problem.