Generally speaking, if "health" exceeds 100%, you can download it, and the bigger the number, the better; If the "health" is less than 100%, the download may not be completed or it may need to be transplanted and uploaded again. Of course, these are just connected peers.
Its specific definition is as follows:
If you are downloading a task:
If the files on the Internet are incomplete (you may not be able to download them completely), health is the percentage you still need on the Internet.
If there are files (such as seeds) on the Internet, the health degree is the equivalent number of files you need to download on the Internet.
If you are uploading a task:
If the files on the internet are incomplete (except yourself), health is the percentage of the total size that the existing parts on the internet can piece together;
If the internet is complete (theoretically, the downloaders can complement each other until it is complete), it is the equivalent number of copies of the total distribution (excluding themselves).
Simply put, it is the total amount of this file you want to download online.
Suppose a document is divided into five parts.
A is 0% to 20%, B is 20% to 40%, C is 40% to 60%, D is 60% to 80%, and E is 80% to 100%.
So when these five people are online at the same time, the theoretical health is 100%.
At this time, an F appears, and F owns all of this document, so the health degree is 200%.
Exceeding 100% may not be over (it is possible that you are less than the last 20%, but E is French and you can't connect with him).
Less than 100% is absolutely impossible in theory. (Because everyone has less than everyone put together)