https://blogs.mercola.com:443/sites/vitalvotes/archive/2025/11/04/the-_1C20_safe_1D20_-sleep-aid-that-might-be-hurting-your-heart.aspxMelatonin is often seen as a safe, natural sleep aid, but new research shows it may not be as harmless as many people think. A large international study found that adults who used melatonin for more than a year had a higher risk of heart failure, hospitalizationenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)