Cinnamon bark has many potential health benefits, including: 
Antimicrobial, antiviral, and antifungal properties: Cinnamon can be used as a natural preservative and may help treat infections. 
Anti-inflammatory properties: Cinnamon can help manage cardiovascular diseases and diabetes. 
Blood glucose regulation: Cinnamon may help regulate blood glucose levels. 
Hepatic steatosis: Cinnamon may help improve fatty liver caused by high-fat diets. 
Alzheimer's and Parkinson's disease: Cinnamon may help inhibit the buildup of tau protein in the brain, which is a hallmark of Alzheimer's disease. Cinnamon may also help protect neurons and improve motor function in mice with Parkinson's disease. 
Anti-cancer properties: Cinnamon extract may help inhibit the growth of tumor cells in breast cancer, colorectal cancer, melanoma, and liver cancer. 
Wound healing: Cinnamon bark contains tannins that may help wounds by acting as an astringent. 
Digestive issues: Cinnamon tea may help reduce gas and spasms. 
Cinnamon is generally safe as a tea, spice or flavoring agent.