Medically reviewed by Mary Josephine Hessert, DO Common triggers for vasovagal syncope include extreme heat and dehydration.Fainting episodes occur most frequently in people younger than 40 years old.

Establishing the cause or causes of syncope serves two principal purposes. First, an etiologic diagnosis permits assessment of prognosis and risk of recurrence, both issues of great concern for ...

Fainting, or syncope, is often dismissed as harmless, but doctors warn it can be an early sign of heart failure. It occurs ...

Syncope is a transient loss of consciousness and postural tone followed by spontaneous recovery without therapeutic intervention. It is a common clinical problem, the origins of which are often ...