Does altitude affect heart rate?

Related questions

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3. At what altitude does altitude sickness start?
4. Does altitude make you tired?
5. At what height does altitude sickness start?
6. What town has the highest altitude in Colorado?
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8. Where is the climax of 3 Idiots?
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Tags

1. #increase
2. #should
3. #decrease
4. #higher
5. #heart
6. #however
7. #therefore
8. #significantly
9. #acclimatize
10. #larger
11. #altitudes
12. #altitude
13. #resting
14. #tends
15. #adaptation
16. #indicator