网上看到的资料：
“Did the track workout suppress your immune system and allow you to get sick?
In a study published in the August, 1995 issue of Medicine and Science in Sports and Exercise, Dr. J. Duncan MacDougall and colleagues investigated the effects of training on the immune systems of distance runners.
MacDougall et al. found reductions in the ratio of "immune helper" cells to "immune suppressor" cells with increases in either the volume or intensity of training. Dr. MacDougall relates, "This ratio is an accepted marker of immune function, and a reduction indicates an increased susceptibility to infection." The runners' immune systems were depressed more by increasing the intensity of training than by increasing the volume.
How long does it take for your immune system to recover?
In Dr. MacDougall's study, the subjects' immune helper/immune suppressor ratios were found to return to normal by the following day after a workout. This study did not focus on how many hours it takes for the immune system to recover, but Dr. MacDougall states, "Other studies have found this ratio to return to normal within 30-90 minutes after exercise."
What are the implications for your training?
The McMaster University results indicate that you shouldn't suddenly increase the intensity of your training or your mileage because it can overwhelm your immune system. The subsequent suppression of your immune system, although short-lived, can open the door to illness. You should, therefore, take extra precautions when adding speedwork, races, or extra miles to your running program."
难怪跑了35公里后，身体一直不舒服，可能是在吃午餐的餐馆感染到病菌。
之二: My New Toy!
Finally my new toy is here, 1 week after I ordered it on the US website.
It costs USD165, which is a steal for a GPS cum Heart Rate Monitor cum Bike computer cum running computer cum wrist watch.
Cant wait to take it out for a run. Hee hee hee!
But beware, it looks like a star trek gadget on my wrist.
Scott! Beam me up!
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