Couch potato: The antithesis of hormesis

Mark P. Mattson, Alexis Michelle Stranahan, Bronwen Martin

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

The impact of hormesis on health can be further appreciated by consideration of the couch potato lifestyle. When cells in the body and brain are not challenged, they become complacent and are therefore vulnerable to injury and disease. Lack of physical and mental exercise, in combination with excessive food intake, results in a condition called insulin resistance that is a harbinger of diabetes and cardiovascular disease. On the other hand, when fewer calories are consumed and when more energy is expended (exercise), cells are subjected to a mild metabolic stress. They respond to this mild stress adaptively by increasing their ability to take up glucose in respond to insulin. This hormesis response is, in part, responsible for the ability of dietary energy restriction and exercise to ward off diabetes and cardiovascular disease. However, obesity and diabetes are not the only adverse physiological consequences of being a couch potato. Exercise and dietary energy restriction improve the functional efficiency of the heart and gut through a hormetic mechanism that involves increased activity of the parasympathetic component of the autonomic nervous system. As a consequence, heart rate and blood pressure are decreased and gut motility is increased, thereby reducing the risk of heart disease, stroke, and colon cancer. Relatively underappreciated is the contribution of the lack of mental challenges to the poor health associated with the couch potato lifestyle. Individuals who engage in intellectually challenging occupations or hobbies may be at reduced risk for Alzheimer's disease because of the beneficial stress imposed on the neurons when they are challenged. Studies have shown that neurons respond to mental and physical activity by increasing their production of neurotrophic factors that may help them to resist disorders such as Alzheimer's disease and Parkinson's disease.

Original languageEnglish (US)
Title of host publicationHormesis
Subtitle of host publicationA Revolution in Biology, Toxicology and Medicine
PublisherHumana Press Inc.
Pages139-151
Number of pages13
ISBN (Electronic)9781607614951
ISBN (Print)9781607614944
DOIs
StatePublished - Jan 1 2010

Fingerprint

Hormesis
Aptitude
Life Style
Alzheimer Disease
Cardiovascular Diseases
Hobbies
Neurons
Physiological Stress
Autonomic Nervous System
Health
Nerve Growth Factors
Occupations
Colonic Neoplasms
Parkinson Disease
Insulin Resistance
Heart Diseases
Obesity
Eating
Heart Rate
Stroke

Keywords

  • Calories
  • Diabetes
  • Exercise
  • Food addiction
  • Insulin resistance
  • Obesity
  • Sedentary lifestyle

ASJC Scopus subject areas

  • Medicine(all)
  • Pharmacology, Toxicology and Pharmaceutics(all)

Cite this

Mattson, M. P., Stranahan, A. M., & Martin, B. (2010). Couch potato: The antithesis of hormesis. In Hormesis: A Revolution in Biology, Toxicology and Medicine (pp. 139-151). Humana Press Inc.. https://doi.org/10.1007/978-1-60761-495-1_8

Couch potato : The antithesis of hormesis. / Mattson, Mark P.; Stranahan, Alexis Michelle; Martin, Bronwen.

Hormesis: A Revolution in Biology, Toxicology and Medicine. Humana Press Inc., 2010. p. 139-151.

Research output: Chapter in Book/Report/Conference proceedingChapter

Mattson, MP, Stranahan, AM & Martin, B 2010, Couch potato: The antithesis of hormesis. in Hormesis: A Revolution in Biology, Toxicology and Medicine. Humana Press Inc., pp. 139-151. https://doi.org/10.1007/978-1-60761-495-1_8
Mattson MP, Stranahan AM, Martin B. Couch potato: The antithesis of hormesis. In Hormesis: A Revolution in Biology, Toxicology and Medicine. Humana Press Inc. 2010. p. 139-151 https://doi.org/10.1007/978-1-60761-495-1_8
Mattson, Mark P. ; Stranahan, Alexis Michelle ; Martin, Bronwen. / Couch potato : The antithesis of hormesis. Hormesis: A Revolution in Biology, Toxicology and Medicine. Humana Press Inc., 2010. pp. 139-151
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