I have been drinking Puer for more ten years and all these years of drinking these teas. I have found out that some of the Puer tea do have some medical properties.
Below are some medical properties beliefs that I had comes across for your comments and verification.

1. Raw and Cook Puer are belief to able to reduce cholesterol level . One who need to consume at least for two weeks to get some result.

2. Cook puer are belief to relieve flu and able to disintegrated phlegm .( one of my puer drinking buddy swore that this works )

3. Raw Puer is belief to reduce hyper tension .

4. Raw and Cook Puer are able to reduce the fats in the liver.( This is one personal experience, My liver condition had got better each year without any medication.)

5. Raw Purple leaf type Puer are able to reduce glucose level in the blood stream.( Had personally tried this and it does works . My glucose level will drop at least a point after consuming the purple leaf puer tea. One need to at least drinking 8 to 10 large teacups to be effective.)

6. Raw and cook are able reduce waistline as all tea are able disintegrated/wash away fats in the body.

7. The antioxidant in all Puer tea are able to reduce the development of certain cancer cells in the body.

8. The antioxidant in Puer tea are able to liquefied /thinning the density of the blood. (Most sickness is due to the blood thickening in one body , as thick blood are slow to flow in the body system.

9. All tea are able detoxified / clean the body system especially the kidneys and liver.

10. Reactivate the brain cells ( to counter Alzheimer disease) . This could be explain by some people who can't sleep after the drinking tea.

Above are only my own beliefs. therefore I would greatly appreciate if any one could confirm if my beliefs are true or just folklore.