I don't think there is any reason to believe that ife continues after death. The hardest part of imagining the end of our own consciousness is not just that it's very looming and scary, it's also that once consciousness is begun we are hard pressed to imagine it ending. Everything an individual knows exists to him or her in reference to his or herself. I think accepting and acknowledging the existence of things without reference to ourselves is an important part of reconciling ourselves to reality, and a step in the direction of not needing to comfort ourselves with the promise of an afterlife.
In regards tot he comment higher up that page about how thousands of cultures have believed in an afterlife somehow lends credibility to the idea- Normative behavior is not necessarily indicative or reality. billions of human beings lived their entire lives believing the world was flat, and it was a working model for their purposes, but it did not make it true. What lends a concept credibility is objective evidence. I realize that it's har to remain objective about as sensitive as sensitive and rooted in our most personal beliefs as the afterlife is, but if you could step outside yourself and acheive that objectivity I think it's fairly obvious not that there is no afterlife, but that there is no reason to believe that there is. Important note though, throughout history the theory of life after death has been questioned and highly contested- in the 4th century BCE Plato wrote of Socrates welcoming death as either a time of fair judgement and reward as promised, or else simply an eternal sleep; Marcus Aurelius comforted his subjects with the idea that if their is a god and he is not just we should not bow to him, if he is just he will understand your confusion, and if he does not exist we will not be judged, etc.
And though it is very scary to imagine the end of myself being myself, it's also a potential reality (i.e. it won't change based on how pleasant I find it), so I'm charged with the task of embracing it as a motivator to appreciate the time I can continue on being myself.