<unk>  another stage in the same process as<unk>  stroke, occurs under similar conditions as<unk>  stroke and is not distinguished from the latter by some authorities.  The basic symptom of<unk>  is a body temperature above 40°C (104°F) with fainting, or  without mental confusion, which does occur in<unk>  stroke.<unk>  is caused by mild overheating with inadequate water or salt.  In young persons, it is far more common than true sunstroke.<unk>  occurs when blood pressure is lowered as the body dilates (widens) capillaries (small blood vessels) in the skin to radiate<unk> .  Also, water is evaporated from the blood, reducing the blood's volume and therefore lowering blood pressure further.  The result is less blood to the brain, causing light-headedness and fainting.
The basic treatment for<unk>  is like fainting: the patient is positioned in a seating or supine position with legs raised.  Water and oral rehydration salt are administered slowly, and the patient is moved to a cooler area.
Heat syncope
Vasovagal syncope
Defecation syncope
Micturation syncope
Neurocardiogenic syncope
Postural orthostatic tachycardia syndrome
Panic attack
Cough syncope