MadSci Network: General Biology
Query:

Subject: Metabolism level and life expectancy

Date: Wed Feb 20 22:17:55 2008
Posted by Alex
Grade level: 10-12 School: No school entered.
City: New York City State/Province: New York Country: USA
Area of science: General Biology
ID: 1203571075.Gb
Message:

Hello, I was wondering whether or not a high metabolism is actually beneficial. 
I understand that with a high metabolic rate you burn more calories at rest 
compared to someone with a lower metabolic rate. But I also have heard that a 
major reason why small animals, like hummingbirds, live a short life is due to 
their high metabolism. I have heard that aniamls on food restriction diets age 
more slowly. Is a low metabolic good as long as someone eats healthy 
and in small amounts? Thank you for your time.


Re: Metabolism level and life expectancy

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