Melatonin may help ease chronic muscle and joint pain https://www.independent.co.uk/life-style/health-and-families/melatonin-benefits-sleep-pain-relief-b3016291.html Efficacy and effectiveness of melatonin for the management of musculoskeletal pain: a systematic review and meta-analysis of placebo and active controlled trials https://journals.lww.com/pain/fulltext/10.1097/j.pain.0000000000004045~efficacy-and-effectiveness-of-melatonin-for-the-management nur leicht schmerzlindernd