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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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The Effect of Aging on Tissues01:19

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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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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

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Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

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Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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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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Related Experiment Video

Updated: Dec 6, 2025

Measuring Frailty in HIV-infected Individuals. Identification of Frail Patients is the First Step to Amelioration and Reversal of Frailty
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Reducing Frailty to Promote Healthy Aging.

Veronica C Nwagwu1, Christine Cigolle2, Theodore Suh1

  • 1Geriatric Center, University of Michigan, 4260 Plymouth Road, Ann Arbor, MI 48109, USA.

Clinics in Geriatric Medicine
|October 4, 2020
PubMed
Summary

Frailty is a complex geriatric syndrome characterized by multiple symptoms and reduced tolerance to medical interventions. Effective management of frailty requires a comprehensive, multidomain approach.

Keywords:
Functional declineHealthy agingMulticomponent frailty intervention model

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Area of Science:

  • Geriatric Medicine
  • Clinical Gerontology

Background:

  • Frailty is a prevalent geriatric syndrome.
  • Frail individuals exhibit multiple complex symptoms.
  • They have reduced tolerance for medical and surgical treatments.

Purpose of the Study:

  • To highlight the complexity of frailty.
  • To emphasize the need for a multidomain approach in managing frailty.

Main Methods:

  • This study synthesizes current understanding of frailty.
  • It reviews the characteristics and management principles of frailty.

Main Results:

  • Frailty presents as a constellation of symptoms.
  • Reduced tolerance to interventions is a key feature of frailty.

Conclusions:

  • A multidomain strategy is essential for effective frailty treatment.
  • Comprehensive management is crucial for frail geriatric patients.