Vampires why they bite

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Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Why do bloodsucking victims feel ecstasy when bitten? Ask Question. Asked 4 years, 2 months ago. Active 2 years, 9 months ago. Viewed 7k times. The ancient Persians, Babylonians, Hebrews, Assyrians, Greeks and Romans each had their own folklore about blood-guzzling demons and spirits.

But it was the novel, Dracula, by Bram Stoker, that seems to have started the modern European vampire character and subsequent vampire culture.

In , a group of physics students from the University of Leicester in the UK worked out how long it would take an actual vampire to make a real person unconscious from a bite on the neck. They assumed you would fall unconscious once you lost about 15 per cent of your blood.

Now a typical and worthy blood donation is around 10 per cent of your blood volume. But the physics students probably figured that a bit more blood loss 15 per cent combined with the shock of somebody else's canine teeth stabbing into the carotid artery in your neck would make you swoon. The students also assumed that the vampire's fangs made two tiny puncture holes each 0.

Using these numbers, they came up with a time of 6. By the way, the reason that it takes longer at the blood bank to drain about half a litre of blood is that it's seeping from a vein at low pressure, rather than squirting from an artery at high pressure.

But in the land of movies, the victim faints within a few seconds. That's brief enough for the vampire to make a quick getaway before the hero arrives with a crucifix and garlic. Sadly, it might not enough time for the vampire to get a proper feed. Let's start with just one vampire. They plunge their fangs into the neck of a victim, who shortly joins them in the vampire club.