Have you fainted?
A member of the Household Cavalry faints while on guard for the Order of the Garter service at Windsor Castle Whether you’re hot, hungry or perhaps a member of the Household Cavalry standing guard for hours, 40% of people will faint at least once in their lifetime. Known in the medical world as syncope, fainting – a brief loss of consciousness – has baffled doctors for hundreds of years. No one knows exactly how it happens. Until now.
This has been difficult to prove however since the nerve pathways its uses are not well known. Fainting will affect 40% of people at least once in their lifetime But the latest study identified a specific cluster of neurons in the vagus nerve – the main nerve behind mood, immune response, digestion and heart rate – that are closely related to the BJR. It was these neurons that, when stimulated, led to the mice fainting. As seen in humans, the mice quickly bounced back.
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