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Related Concept Videos

Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
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Lifestyle Factors and Health01:20

Lifestyle Factors and Health

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Lifestyle factors play a critical role in maintaining overall health and preventing chronic diseases. Key elements, such as regular physical activity, a nutritious diet, and abstinence from smoking, can significantly enhance physical, mental, and emotional well-being while reducing the risk of several life-threatening conditions.
Benefits of Physical Activity
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Bone Disorders01:29

Bone Disorders

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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
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The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Cancer Prevention02:59

Cancer Prevention

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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
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Cognitive Development During Adulthood01:30

Cognitive Development During Adulthood

42
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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Related Experiment Video

Updated: May 23, 2025

Palatable Western-style Cafeteria Diet as a Reliable Method for Modeling Diet-induced Obesity in Rodents
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Optimal dietary patterns for healthy aging.

Anne-Julie Tessier1,2,3,4, Fenglei Wang5, Andres Ardisson Korat6,7

  • 1Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA. anne-julie.tessier@umontreal.ca.

Nature Medicine
|March 25, 2025
PubMed
Summary
This summary is machine-generated.

Adhering to healthy dietary patterns, like the Alternative Healthy Eating Index, significantly boosts the odds of healthy aging. Diets rich in plant-based foods promote cognitive, physical, and mental well-being into older age.

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Area of Science:

  • Nutrition Science
  • Gerontology
  • Public Health

Background:

  • Global population aging necessitates identification of diets promoting healthy aging beyond disease prevention.
  • Optimal nutrition is crucial for maintaining cognitive, physical, and mental health in later life.

Purpose of the Study:

  • To examine the association between long-term adherence to eight dietary patterns and ultraprocessed food consumption with healthy aging.
  • To assess healthy aging based on cognitive, physical, and mental health measures, and disease-free survival to age 70 and 75.

Main Methods:

  • Longitudinal data from the Nurses' Health Study (1986-2016) and Health Professionals Follow-Up Study (1986-2016) were analyzed.
  • Healthy aging was defined by cognitive, physical, and mental health metrics, and chronic disease-free survival.
  • Associations between dietary patterns, ultraprocessed foods, and healthy aging were assessed using logistic regression.

Main Results:

  • 9,771 participants (9.3%) achieved healthy aging after up to 30 years of follow-up.
  • Higher adherence to all eight dietary patterns was associated with greater odds of healthy aging.
  • The Alternative Healthy Eating Index showed the strongest association (OR 2.24 at age 75), with higher intake of fruits, vegetables, whole grains, and healthy fats linked to better outcomes.

Conclusions:

  • Dietary patterns rich in plant-based foods, with moderate inclusion of healthy animal-based foods, may enhance overall healthy aging.
  • Specific food groups like fruits, vegetables, whole grains, and unsaturated fats are key components of diets promoting longevity and well-being.
  • Reducing intake of trans fats, sodium, sugary beverages, and red/processed meats is inversely associated with healthy aging.