相关实验视频
Updated: Jan 11, 2026

08:22
A Preclinical Model of Exertional Heat Stroke in Mice
Published on: July 1, 2021
4.3K
根据每天的最高,最低和联合温度值,与热浪暴露相关的死亡风险
Zhouxin Yin1, Leyuan Xiao2, Cheng Tang3
1School of Public Health and Emergency Management, School of Medicine, Southern University of Science and Technology, Shenzhen, China.
European journal of public health
|November 9, 2025
概括
热浪,尤其是夜间高温的热浪,显著增加死亡风险,尤其是心血管原因. 这项研究强调了在公共卫生战略中考虑白天和夜间热量的重要性,以减轻热浪的影响.
科学领域:
- 环境流行病学环境流行病学
- 公共卫生 公共卫生
- 适应气候变化 适应气候变化
背景情况:
- 以前关于热浪死亡率的研究经常使用每日平均温度,忽略了明确的白天和夜间热效应.
- 了解不同类型的热浪的具体影响对于有针对性的公共卫生干预至关重要.
研究的目的:
- 评估不同热浪定义 (每日最高,每日最低,综合温度) 与死亡率之间的关联.
- 调查白天和夜间暴露于热量对死亡风险的影响差异.
主要方法:
- 利用个人死亡记录和住宅暴露数据 (温度,湿度,臭氧) 从2016-2022年在重庆,中国.
- 采用了时间分层的案例交叉设计来分析热浪事件中17552例死亡.
- 基于每日最高温度,每日最低温度和组合值的分类热浪.
主要成果:
- 根据温度值组合定义的热浪显示出最高的死亡风险 (ORs1.08-1.32).
- 每日最低温度定义的热浪也表明了显著的死亡风险 (ORs1.04-1.27).
- 热浪暴露增加了全因和心血管死亡率,在男性和较高臭氧水平下观察到更强烈的关联.
结论:
- 复合热浪,包括白天和夜间的热量,构成最重要的死亡风险.
- 暴露在夜间的热量是热浪相关死亡率的一个关键因素,不应低估.
- 调查结果强调需要将夜间温度监测和缓解策略纳入公共卫生规划.
相关概念视频
Homeostatic Imbalances in Body Temperature
3.8K
Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
3.8K
Increased Body Temperature
6.4K
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
6.4K
Factors Affecting Body Temperature
8.5K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
8.5K
Decreased Body Temperature
981
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
981
Requirements for Human Life
12.4K
The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
12.4K
Body Temperature
1.3K
Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
1.3K

