https://blogs.mercola.com:443/sites/vitalvotes/archive/2025/09/25/scientists-may-have-found-a-surprising-driver-of-sleep.aspxWhy do we sleep? For decades, scientists believed the answer was found only in the brain. But new research from Washington State University suggests microbes may also play a role. The team discovered that bacterial cell wall molecules called peptidoglycansenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)