Too Much Exercise May Cause Heart Failure

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Hi folks:

http://www.sciam.com/article.cfm?alias=too-much-exercise-may-

spe & chanId=sa003 & modsrc=reuters_box

http://snipurl.com/1ppao

Of course what applies to mice may not apply to us.

But I would have thought that the amount mice run voluntarily when

given the opportunity to run as much as they want, would not be likely

to be a huge amount of exercise. Any more than most humans given a

treadmill and invited to run as much as they like would exercise a

truly excessive amount.

So I speculate that in this case 'excessive' may not mean a huge

amount. It would be different if they had required the mice to jog

five miles in order to get to where their daily food ration was

located.

Rodney.