1. Warming and dispersing cold: cinnamon tea can regulate body temperature, promote gastrointestinal function, play a role in warming and dispersing cold, suitable for cold or gastrointestinal discomfort of the crowd.

2. Improve blood circulation: cinnamon tea is rich in volatile oils, can promote blood circulation, improve the body's metabolic function, suitable for poor blood circulation or physical weakness of the crowd.

3. Reduce blood sugar: Cinnamon tea contains substances that can assist insulin, promote glycogen synthesis and storage, reduce blood sugar, suitable for diabetics.

4. Improve bad breath: Cinnamon tea contains volatile oils that can effectively relieve bad breath, suitable for people with serious oral diseases.

Contraindications:

1. Pregnant and lactating women should not drink cinnamon tea.

2. It is not suitable for people with poor liver and gallbladder function, stomach disease or emaciation.

3. People with kidney disease should not drink.

4. Long-term consumption may cause allergic reactions, and should be consumed in moderation.

5. Drugs that control lipid levels in the body should not be taken at the same time as cinnamon tea.