Why do men like football players playing game spit?

My boyfriend says football running long distance, over exercise, after the marathon, good players for each game in 10,000 m running distance is 10 km or more, but also to make scraping and play, etc. technical action. As a result, the body's respiratory tract in such a high intensity of the load under the inevitably produce a lot of thick mucus, if not promptly spit it out, would be very uncomfortable, right health is also very unfavorable, ask everyone my boyfriend's is real it?

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cherish life, away from the Chinese Football

really.

you go after running 800 meters to know why.

I think your boyfriend has a very clear explanation. Do not need to ask, huh, huh.