How temperature influence health?4 answersTemperature influences health in various ways. Rising temperatures due to climate change can lead to extreme climate events, affecting health directly through heat and cold waves, floods, storms, and indirectly through disruptions in food production, decreased food quality, and increased air pollutant concentrations. Extreme temperatures have been linked to increased mortality, particularly in individuals with cardiorespiratory diseases, while the impact on morbidity is less studied. Heat waves are associated with excess morbidity and mortality from cardiovascular diseases, with endothelial dysfunction playing a crucial role in heat-induced cardiovascular damage. Additionally, temperature changes can alter the propagation of ultrasonic guided waves, impacting health monitoring in high-temperature environments. Overall, understanding and addressing the health impacts of temperature fluctuations are crucial in the face of climate change challenges.
How does heat insulation affect BMI?5 answersHeat insulation does not affect BMI in mice, as obesity of any kind does not increase thermal insulation in mice. However, the effect of heat insulation on BMI is not mentioned in the other abstracts.
What is thermal insulation?4 answersThermal insulation refers to the use of materials or structures to reduce the transfer of heat between different areas or environments. It is commonly used in buildings to minimize energy loss and improve energy efficiency. Thermal insulation materials can be applied internally or externally, such as in attics, cellars, external walls, doors, and windows. These materials can be made of various substances, including polymers, foams, aerogels, and vacuum insulation panels. They are designed to have low thermal conductivity, which means they are resistant to heat transfer. Some thermal insulation materials also have additional properties, such as flame retardancy. In industries that handle combustible products, thermal insulation can provide heat protection in fire incidents if it is sufficiently heat resistant. Overall, thermal insulation plays a crucial role in reducing energy consumption and improving the thermal performance of buildings and industrial applications.
What is the effect of different biopolymers thermal insulation?4 answersBiopolymers have been studied for their thermal insulation properties. Different biopolymers, such as cellulose, starch, chitosan, and polylactic acid, have been investigated for their thermal stability and degradation steps. Studies have shown that the thermal stability of biopolymers can be improved by blending them with other polymers, crosslinking agents, and nanofillers. In the context of building insulation materials, bio-based insulation materials have been found to provide good performance with low carbon emissions. However, it is noted that the physical properties of natural insulation materials, including thermal capacity and lifetime, are not as explored as thermal conductivity. In the field of heat transfer applications, biopolymers like chitosan and Gum Arabica have been found to provide stable nanofluids with improved thermal conductivity. Overall, the use of different biopolymers in thermal insulation applications has shown promise in improving thermal stability and performance.
What are the effects of thermal environment on cardiovascular health?5 answersThe thermal environment has significant effects on cardiovascular health. Exposure to thermal extremes, such as cold and heat, can increase the risk of cardiovascular morbidity and mortality. Heat stress, especially during heat waves, can lead to heat stroke, a life-threatening condition that affects the cardiovascular system. Impaired cardiovascular function can limit the body's ability to dissipate heat, increasing the risk of heat stroke and cardiovascular complications. In healthcare facilities, the thermal environment can impact the comfort, well-being, and safety of patients and healthcare personnel. Thermal comfort or discomfort during surgery can affect patient satisfaction with surgical care. Additionally, heat stress, whether passive or through exercise, results in cardiovascular adjustments to regulate temperature and perfuse vital organs. These adjustments include changes in heart rate, sympathetic nerve activity, vascular resistance, and cerebral perfusion.
How does thermal environment impact cardiovascular health?3 answersThe thermal environment has a significant impact on cardiovascular health. Exposure to extreme temperatures, both cold and hot, has been associated with an increased risk of cardiovascular morbidity and mortality. Vulnerable populations, such as individuals born preterm and those with impaired cardiovascular function, are particularly at risk during thermal extremes. Heat stroke, a life-threatening syndrome of hyperthermia, can lead to cardiovascular complications, including arrhythmias, myocardial ischemia, heart failure, and sudden death. The physiological response to temperature challenge involves the activation of the sympathetic nervous system, renin-angiotensin system, dehydration, and a systemic inflammatory response. It is important to consider the control of indoor thermal environments, such as heating, insulation, and behavior, in order to mitigate the impact on cardiovascular health. Further research is needed to understand the underlying mechanisms and develop adaptation strategies to protect cardiovascular health in the face of changing climate conditions.