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Related Concept Videos

Fatigue01:21

Fatigue

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Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
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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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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.
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Aging01:26

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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.
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Flail Chest-I01:24

Flail Chest-I

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Overview of Flail Chest
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

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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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Related Experiment Video

Updated: Dec 21, 2025

Frailty Assessment in an Aging Mouse Model
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Frailty Assessment in an Aging Mouse Model

Published on: September 23, 2025

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[Frailty].

Anne W Ekdahl1, Niklas Ekerstad1, Joakim Alfredsson2

  • 1.

Lakartidningen
|May 13, 2020
PubMed
Summary
This summary is machine-generated.

Frailty, a state of accelerated aging, better identifies older adults needing multidimensional care than multimorbidity. This dynamic condition is preventable and treatable, with screening tools aiding risk stratification and care decisions.

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Area of Science:

  • Gerontology
  • Geriatrics
  • Public Health

Background:

  • Frailty is a key indicator of biological aging, distinct from chronological age.
  • It signifies a reduced ability to cope with physical, mental, and social stressors.
  • Frailty is a dynamic condition that can be influenced by lifestyle interventions.

Purpose of the Study:

  • To highlight the superiority of frailty over multimorbidity in identifying older adults requiring specialized care.
  • To emphasize the dynamic and potentially reversible nature of frailty.
  • To underscore the utility of frailty screening tools in clinical decision-making.

Main Methods:

  • Review of the concept of frailty in geriatric care.
  • Discussion of validated frailty screening tools.
  • Analysis of frailty's role in risk stratification for medical interventions.

Main Results:

  • Frailty is a more effective marker than multimorbidity for identifying older individuals needing comprehensive care.
  • Screening tools can quantify frailty, enabling risk stratification.
  • Assessment of frailty aids in tailoring medical interventions, distinguishing between biologically young and old individuals.

Conclusions:

  • Frailty is a critical concept in geriatric medicine, surpassing multimorbidity for care identification.
  • Early detection and intervention for frailty can improve health outcomes in older adults.
  • Frailty assessment supports personalized medical care, optimizing treatment allocation.