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Published on: May 28, 2011
Caloric restriction and longevity: the science and the ascetic experience
Linda Hotchkiss Mehta1, George S Roth
1New York Academy of Sciences, New York, New York, USA. lmehta@pmph-usa.com
Annals of the New York Academy of Sciences
|September 9, 2009
Summary
Caloric restriction (CR) is the only intervention proven to extend lifespan and maintain youthful characteristics across species. Scientists are searching for CR mimetics to provide these benefits without fasting.
Area of Science:
- Gerontology and aging research
- Nutritional science
- Biomedical research
Background:
- Aging is characterized by a systemic increase in disorder.
- Stress accelerates aging, but caloric restriction (CR) uniquely extends lifespan and preserves youthfulness.
- Historical observations, including those in Tibetan medicine and religious ascetics, suggest CR enhances activity, mental acuity, and immune function.
Purpose of the Study:
- To investigate the mechanisms underlying the life-extending and youth-preserving effects of caloric restriction (CR).
- To identify potential CR mimetics that can confer benefits without requiring fasting.
- To understand how CR counteracts the aging process.
Main Methods:
- Review of historical and scientific literature on caloric restriction (CR) and aging.
- Analysis of observations from long-term CR practitioners (e.g., religious ascetics).
- Exploration of traditional medicine insights, such as Tibetan medicine's dietary prescriptions.
Main Results:
- Caloric restriction (CR) is consistently linked to extended lifespan and maintenance of youthful traits across diverse species.
- Human observations indicate CR enhances physical activity and cognitive function.
- Traditional practices suggest CR also improves immune function.
Conclusions:
- Caloric restriction (CR) offers significant benefits for extending lifespan and healthspan.
- Understanding CR's mechanisms is crucial for developing interventions that mimic its effects.
- Future research aims to translate CR's benefits to the general population through non-fasting strategies.
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