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Related Concept Videos

Dementia01:30

Dementia

Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
Cognitive Development During Adulthood01:30

Cognitive Development During Adulthood

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,...
Dementia l: Introduction01:22

Dementia l: Introduction

Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
Menopause01:28

Menopause

Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...

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Related Experiment Video

Updated: Jun 25, 2026

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing
06:58

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing

Published on: January 24, 2020

Menopause, cognitive ageing and dementia: practice implications.

Victor W Henderson1

  • 1Departments of Health Research and Policy (Epidemiology) and of Neurology and Neurological Sciences, Stanford University, 259 Campus Drive, Stanford, CA 94305-5405, USA. vhenderson@stanford.edu

Menopause International
|February 25, 2009
PubMed
Summary
This summary is machine-generated.

Cognitive aging impacts episodic memory. While natural menopause doesn't cause memory loss, surgical menopause and hormone therapy timing require further study for Alzheimer's disease risk assessment.

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A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
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A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment

Published on: January 11, 2020

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Last Updated: Jun 25, 2026

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing
06:58

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing

Published on: January 24, 2020

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
12:18

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment

Published on: January 11, 2020

Area of Science:

  • Neurology
  • Gerontology
  • Endocrinology

Background:

  • Cognitive aging affects episodic memory, with impairment potentially indicating early Alzheimer's disease.
  • Natural menopause does not objectively impair memory, but effects of surgical menopause are less understood.
  • Estrogen therapy post-menopause may increase dementia risk and offers no memory benefits.

Purpose of the Study:

  • To investigate the relationship between hormone therapy use during the menopausal transition and early postmenopause and Alzheimer's disease risk.
  • To examine the impact of surgical menopause on memory.
  • To clarify the "critical window" hypothesis regarding hormone therapy and dementia risk.

Main Methods:

  • Review of observational studies on hormone use, menopausal transition, and Alzheimer's disease risk.
  • Analysis of cognitive function in relation to surgical menopause.
  • Evaluation of existing literature on estrogen therapy and dementia.

Main Results:

  • Observational studies suggest a protective effect of hormone use during the menopausal transition, but potential biases exist.
  • The impact of surgical menopause on memory requires further investigation.
  • Late postmenopausal estrogen therapy is associated with increased dementia risk and no memory improvement.

Conclusions:

  • The timing of hormone therapy initiation around menopause may influence Alzheimer's disease risk, warranting further research.
  • Clinical implications for managing menopausal symptoms and assessing dementia risk are discussed.
  • More research is needed to confirm findings and address potential biases in observational data.