Re: Running in marathons impairs immunity

Once upon a time, our fellow jmk
   rambled on about "Re: Running in marathons impairs immunity."
Our champion De-Medicalizing in sci.med.nutrition retorts, thusly ...

Well, I have already presented my take on the situation.  :)

Why don't YOU present us with the DETAILS and/or JUSTIFICATIONS for
your different take on the 90 minute limit suggestion?

What did you conclude from the article?

>> When it comes to exercise, a lot of people like to take an extreme
>> position.  Either they claim that they exercise because they do Hatha
>> Yoga (ie, the extreme of deficiency), or they insist upon running in
>> those 26 mile marathons (ie, the extreme of excess).  Marathon runners
>> are really an insane group of people.
>
>I didn't have that take on the article at all.  I am no marathon runner 
>but I do exercise for more than 90 minutes at a time at least once a week.
>
>> "Many components of the immune system exhibit adverse change after
>> prolonged, heavy exertion lasting longer than 90 minutes."  Thus, 90
>> minutes should be the maximum length for all workworks, particularly
>> for continuous exercise activities.
>
>Why do you think that 90 minutes should be the maximum length?  What 
>makes you think that the human body was not designed for durations of 
>activity?