Article Link NYTimes Article: "What We Think We Know About Metabolism May Be Wrong"

[adawn]

https://www.nytimes.com/2021/08/12/h...ght-aging.html

Science magazine article abstract:
https://science.sciencemag.org/looku...cience.abe5017

"Metabolic research is expensive, and so most published studies have had very few participants. But the new study’s principal investigator, Herman Pontzer, an evolutionary anthropologist at Duke University, said that the project’s participating researchers agreed to share their data. There are more than 80 co-authors on the study. By combining efforts from a half dozen labs collected over 40 years, they had sufficient information to ask general questions about changes in metabolism over a lifetime."

Central findings:

4 periods of life when it comes to metabolism

1. Birth to 1 year - Peak (interestingly though, baby shares its mom's metabolic rate for the 1st month)

2. Age 1 to 20 - Metabolic rate slows gradually approx 3% per year

3. Age 20 to 60 - Holds steady

4. After age 60 - Metabolic rate declines approx 0.7% a year resulting in a 20% decline by age 95.

Other things of interest:

Individuals can of course vary by 25% plus or minus the average metabolic rate but they are outliers.

Since heart, liver, kidney, and brain "account for 65% of resting metabolic rate...[a] slower metabolism after age 60...may mean that crucial organs are functioning less well as people age."

Sorry I can't type more but we have been without internet for almost 48 hours due to storms last night and it took me forever just to do this post via my cellphone.