Pulled from the comments (which are remarkably smart): "Upregulated p53 activity in humans is implicated in Huntington's disease. Which makes sense, since the

Pulled from the comments (which are remarkably smart): "Upregulated p53 activity in humans is implicated in Huntington's disease. Which makes sense, since the symptoms involve early death of brain cells. So this isn't a panacea in itself. But as we learn more of the gene regulatory networks involved, we may be able to develop something much more fine-tuned that has the benefits without the costs." - Suzanne Sadedin