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Related Concept Videos

Hydration of Cement01:24

Hydration of Cement

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Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...
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The cardiovascular system is a vital transportation system in the body. It comprises the heart and blood vessels and facilitates the exchange of gases, nutrients, and waste products.
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The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
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The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
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Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
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Hydration Status and Cardiovascular Function.

Joseph C Watso1, William B Farquhar2

  • 1Department of Kinesiology and Applied Physiology, University of Delaware, Newark, DE 19713, USA. JosephWatso@texashealth.org.

Nutrients
|August 14, 2019
PubMed
Summary
This summary is machine-generated.

Low body water (hypohydration) impairs physical and mental performance. New evidence suggests hypohydration also negatively impacts cardiovascular health by affecting vascular function and blood pressure regulation.

Keywords:
blood pressure regulationhypohydrationsympathetic nervous systemvascular function

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Area of Science:

  • Physiology
  • Cardiovascular Science
  • Hydration Studies

Background:

  • Hypohydration, a state of low body water, triggers physiological responses like increased thirst and hormone release to restore fluid balance.
  • While known to impair cognitive and physical performance, emerging research indicates hypohydration may adversely affect cardiovascular health.
  • Cardiovascular disease remains a leading cause of mortality, underscoring the importance of understanding factors influencing cardiovascular risk.

Purpose of the Study:

  • To review current evidence on the relationship between acute hypohydration and cardiovascular health.
  • To examine how hypohydration impacts vascular function and blood pressure regulation.
  • To synthesize findings regarding the potential link between chronic low water intake and cardiovascular event risk.

Main Methods:

  • Literature review of existing studies on hypohydration and cardiovascular parameters.
  • Analysis of research investigating the effects of acute dehydration on vascular function.
  • Examination of studies assessing blood pressure regulation under hypohydrated conditions.

Main Results:

  • Acute hypohydration can impair endothelial function, a key aspect of vascular health.
  • Hypohydration is associated with increased sympathetic nervous system activity.
  • Reduced body water can negatively affect blood pressure regulation and orthostatic tolerance.

Conclusions:

  • Acute hypohydration demonstrably alters vascular function and blood pressure regulation.
  • Further research is needed to elucidate the mechanisms by which chronic low water intake may increase cardiovascular risk.
  • Understanding the cardiovascular implications of hypohydration is crucial for public health, given the prevalence of cardiovascular disease.