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- Thu Dec 17, 2009 4:13 pm
- Forum: General Discussion
- Topic: cold and excersize
- Replies: 17
- Views: 7298
When you exercise your muscles require more energy. The rate of respiration in your muscles increases releasing energy - much of the enrgy is used to move muscles but some is 'lost' as heat - so you warm up. If you exercise enough so much heat is generated that your body responds and tries to cool ...
zami'87. wrote:pupil widens(that's why eyes seem black),iris can't contract..for example because of oculomotor nerve damage.
But, how does the fact that it can't contract affect the colour?