That's not what survivorship bias means. More on this in my reply to your sibling comment.
> Of course, they may also have "better" genes.
That's part of the issue: they might have something different from you such that their advice may not apply to you. And since they have an exceptionally long life, they might not be like the majority. But you are likely to be like the majority (you probably don't know yet. If you knew you might not even need advice in the first place).
But we don't hear much about stuff to avoid from people who died younger. Not that those people also know about a number of data point of 1 anyway. That's why we need rigorous studies.
> Of course, they may also have "better" genes.
That's part of the issue: they might have something different from you such that their advice may not apply to you. And since they have an exceptionally long life, they might not be like the majority. But you are likely to be like the majority (you probably don't know yet. If you knew you might not even need advice in the first place).
But we don't hear much about stuff to avoid from people who died younger. Not that those people also know about a number of data point of 1 anyway. That's why we need rigorous studies.