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Related Concept Videos

Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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Psychoneuroimmunology: Cardiovascular Disease01:27

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Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
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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.
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Coronary Artery Disease IV: Preventive Measures01:26

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Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
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Assessment of the Cardiovascular System I: Subjective Data01:23

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A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
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Related Experiment Video

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Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies
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Associations of Urban Built Environment with Cardiovascular Risks and Mortality: a Systematic Review.

Ka Yan Lai1,2, Chris Webster3,4,5, John Ej Gallacher6

  • 1Healthy High Density Cities Lab, HKUrbanLab, The University of Hong Kong, Knowles Building, Pokfulam Road, Hong Kong Special Administrative Region, China. kyylai@hku.hk.

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Urban greenness and walkability are linked to reduced cardiovascular disease risks. This systematic review highlights their protective effects, emphasizing the need for healthier city planning.

Keywords:
Arterial stiffnessBuilt environmentCVD events, CVD mortalityGreenspaceHypertensionWalkability

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Area of Science:

  • Environmental Health
  • Cardiovascular Medicine
  • Urban Planning

Background:

  • Rapid urbanization presents modifiable cardiovascular disease (CVD) risks.
  • The urban built environment, including greenness and walkability, influences cardiovascular health.
  • Existing evidence on these associations requires systematic synthesis.

Approach:

  • A systematic review of 63 studies (31 cross-sectional, 32 longitudinal) published 2012-2023.
  • Studies examined urban built environment attributes (density, land use, greenness, walkability) and CVD risk factors/events.
  • Risk of bias assessment included confounding, exposure, and outcome measurement.

Key Points:

  • Greenness showed protective associations with cardiovascular risks (hypertension/blood pressure, arterial stiffness) and major CVD events.
  • Walkability was consistently associated with lower risks of hypertension, arterial stiffness, and major CVD events.
  • A significant proportion of studies had a "probably high" risk of bias, particularly for confounding.

Conclusions:

  • Evidence suggests greenness and walkability are protective factors for cardiovascular health in urban settings.
  • Limitations in study designs, especially regarding confounding, warrant cautious interpretation.
  • Future research with robust designs is crucial for informing healthy city planning policies.