Nausea and vomiting

　　Feeling light-headed/faint

　　Tiredness

　　Headache

　　Muscle cramps

　　With heatstroke, the temperature of the body rises and the following symptoms may occur:

　　Confusion

　　Disorientation

　　Rapid and shallow breathing

　　Fits

　　Causes and risk factors

　　Anyone can develop heat exhaustion and heatstroke, although some people are more at risk than others. These include:

　　Small babies, children and older people, who have less efficient body cooling systems.

　　People suffering from diarrhoea, who are more likely to become dehydrated.

　　People from cooler climates who travel to hotter climates, as it may take a while for their bodies to get used to the heat. Being in areas of high humidity also increases a persons risk, as this reduces the efficiency of sweating and decreases the amount of heat lost from the body.

　　People with certain medical conditions that reduce the efficiency of the bodys cooling mechanisms. For example diabetes, obesity and chronic heart failure.

　　Those who drink excessive amounts of alcohol, which dehydrates the body.

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