Here's a good rule of thumb: any time you try to undo a billion years of evolution, there will probably be unintended side effects. Go to bed.
1) Walk for a day or two, with naps during afternoon heat. 2) Eat absolutely enormous meal. 3) Sleeeep. 4) Repeat.
Not giving out generally useful advice just because an extremely small minority can’t use it is just silly. And giving it out is certainly useful to most people who hear it.
Just because you can’t use it, doesn’t mean someone shouldn’t give advice. There are other humans in existence.