Torrent file sharing is one of the best thing ever to be made, it made sharing files of that are in the Gigabytes range effortless. One of the best features it has is its resume capabilities, this means should you lose internet connection for a moment or day (God forbid) it will resume on the progress it already made. I know you have the same questions that I have, if gravity stops things from falling into space but what’s stopping earth to float away, just kidding, I know the answer but how does torrent do this, traditionally you would download a file from one source/server, but torrent makes it possible you to download from multiple sources, using Peer to Peer technology (P2P).
Seeding: after you’ve finished your download to help distribute it (you distribute the file while downloading, but it’s even more helpful if you continue to distribute the full file even after you have finished downloading). Chances are that most of the data you got was from seeds, the client will continue seeding until the torrent is removed (right-click the torrent, then hit Remove). Proper practice is to seed until the ratio of upload:download is at least 1.00. Remember it’s all up to you whether you want to seed or not, but your download was made faster by someone who seeded, how about we return the favor right. And this means that when a file has no seeds, two lifetimes won’t even matter, you cannot download that file.
So, to answer the question you are not asking because you don’t want to offend anybody, Seeding does not harm your computer.
As they are referred to in torrenting terms, leechers, are those who are downloading and uploading at the same time.
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