Could (scientifically) vampires exist?

Question

As per the question. My friend and I were, for humor, discussing whether or not a vampire or similar creature could actually exist going by the common laws of physics, biology, and genetics. Assuming that the various details don't matter (garlic, running water, crosses, demonic stuff, superman type strength, flight, morphing into animals, etc) and that we're only looking at the base idea of an offshoot of the homosapien species who gains nourishment from the blood of homosapiens. Now, by his theory a human evolutionary offshoot who was unable to digest food in the manner to which we are accustomed might be able to use the predigested nutrition that is carried through the human bloodstream as a source of basic nutrition and energy. Now, neither of us have a phd or any extensive scientific knowledge on such subjects, but at face value this seems sound. Could this theoretically exist?

Note: I am looking for information that is scientific. Please don't respond by telling me you are a vampire, going into psi-vampires, or talking about the blood fetishes, etc.

Answer 1

Possibility of imortals  vampires for example the theoy of creature may have orgins in the bible pagans worshiped and copied the creature  known as posiable dragune demi god a angle wich fell from heven a demon who fathered a human hybrid Lilith but this demon hybrid was loved by god and promised eternity  in edom in the book of Isaiah "The wild beasts of the desert shall also meet with the wild beasts of the island, and the satyr shall cry to his fellow; the screech owl also shall rest there, and find for herself a place of rest."

Answer 2

Ok, I know you said no web pages, but this site has a scientific analiysis and everything! not any of that being undead demonic c**p.

It will do a better job explaining than I would....

the site is called HAEMAVORE.com, if you are really interested.

Answer 3

i am not sure but if its true i dont think its the hardcore bloodsucking stuff nowadays  

Answer 4

I AM a vampire!  no, just kidding.  There is a disease that makes it hard, or impossible to digest food, and carry the nutrients to your bloodstream, i think it has to do with your liver.  i can't remember the name though.  there are a lot of blood diseases, such as hemophilia and its entirely possible that someone could only gain nutrients from blood, though not very likely  

Answer 5

Yes. The vampires of fictional books and horror movies are mythical, but there is also a real life subculture of vampires.

They aren't undead or immortal, and, most importantly, most modern vampires don't attack people to drink blood. The mythical creature arose from superstitions and folklore, but there are human beings who see themselves as vampires.

There are two types, sanguine vampires (the ones that drink blood, usually from consenting donors) and psychic vampires (who feed on energy.)

http://www.sanguinarius.org/

Vampires in Their Own Words: An Anthology of Vampire Voices by Michelle Belanger

I gave you the facts, dont be rude!!!

Answer 6

Essentially you are just asking if someone who can only get their nourshiment from human blood can exist?

While there are various disorders in which a person cannot digest certain foods, evolutionarily speaking, primates are designed to be omnivorous. We eat meat because we cannot build certain proteins, unless we eat the right combination of plant foods, which were not always available, and we have long digestive tracts to digest plant material. We have well developed color vision for one reason only, and that is the fact that we eat fruit, which tends to be colorful, and our teeth are like a cutlery set, with certain teeth for certain things.

So, it would not be likely for a primate type being to exist which HAD to live off of human blood.

If a large quantity of blood were to enter your stomach, chances are, you would vomit. If you tried to subsist on blood alone you'd probably get iron poisoning and a host of other ailments because when the blood cells enter your stomach they burst, leaking toxins.

But this is a primate body. Mosquitos and vampire bats live off of mammalian blood.

Answer 7

real undead human vampires no, animal vampires yes (vampire bat, mosquito females (the male feeds on nectar), leeches, ticks and other parasites)...i heard about blood drinking humans personally i consider them a bit weird, why drink blood? but then again blood drinking has been around for thousands of years, since then man has considered that by drinking the blood of a powerful foe he'll gain the strength of that foe.

Answer 8

They may or they may not exist.

Vampires really came from some man who loved war and the said he had a thirst for blood. But not to drink it just to spill it in battle.  

Answer 9

Okay, I am not giving you trouble.  There are vampire bats in some caves in South America.  That is not fictional.  I read that they rarely suck blood from a human, they choose smaller victims.

Answer 10

They do exist. If you rent a vampire movie, video game, book, you will find vampires there. ..

Answer 11

Yeah.."IM ONLY HALF EVIL" is totaly right. You should award him/her

10 points.

Answer 12

No. I am a Nurse, and the human body is not designed to process large amounts of blood for nutrition. There simply is not enough protein, carbohydrates, and fats present in blood to maintain a complex creature such as Homo Sapiens or any theorized offshoot mutations. When a human ingests food it is first broken up by chewing, then churned up in the stomach with digestive juices to form a bolus called chyme. It then passes into the small intestine where it mixes with bile salts which continue breaking it down on a molecular basis, mostly affecting fats at this point. The broken down nutrients pass through the wall of the intestines and into the bloodstream where they are carried to each cell or stored for later use. Indigestible bulk continues through the intestines, turning a dark brown from the bile. Water is absorbed from this mass in the large intestine depending on the needs of the body - a well-hydrated person will usually have a softer stool than a dehydrated person will. Water also enters the bloodstream, and this is what helps to maintain blood pressure. The pressure tends to balance itself in a healthy person because the bloodstream goes through a formation in the kidney called the Loop of Henle, where the narrowing blood vessel forces excess water and cellular waste such as urea out through the cellular wall into the kidneys, where it is excreted through the ureters into the bladder, and then out of the body via the urethral passageway.

A person physically unable to process his own food for nutrition therefore also could not process blood - it's the same process.

Theoretical ingestion of blood to supply these nutrients would therefore have to occur at least once a day, and would require the ingestion of the entire blood supply! which could not happen as the stomach is far too small to hold that much liquid volume. Furthermore, such a mass would be difficult to pass thru the intestines, and any "real" vampire would have to eventually do so in order to get rid of the waste, which would come out as a black, tarry, smelly goo. The word "vampire" is defined as an undead monster that drains the blood of the living. These humans that affect the whole "vampiric lifestyle" are NOT vampires. They are simply humans playing their own little game, in their own little fantasy world. I too, play my own little game, in the SCA, but mine is a game where the deeds that I do are determined by the strength of my arm and sword - I am a warrior, with just as much skill and ability as any warrior of ancient times. The difference is that I am claiming to be something physically possible: a warrior, and I prove it everytime I strap on my armor and walk onto a SCA battlefield. The so-called "vampires" are claiming to be something physically impossible: a walking corpse, and all they prove is that black Victorian clothing, a pair of false fangs, and a little makeup make for a good Halloween costume - it does not make you a vampire.

Also, consider this: if a vampire has to (per my earlier example) feed at least once a day, and if this results in a new vampire every time (per the original legends) then the original vampire creates 365 offspring in just 1 year. The first one he creates then sires 364 more that year, and the second sires 363, and so on and so forth, do the math - almost a million vampires in the first year alone! Reproducing at an exponential rate, even with today's global population, they would totally convert every human on the planet in less than five year's time! (In 1 week's time alone that would be 35 vampires, and by the end of the 2nd week there would be 7 more for each of the 35, for a total of 245 plus another 34 for the new ones, or a grand total at the end of 14 days of 279 vampires!) This falls therefore, under the logic of Occam's Razor - which states that when you have removed every impossible answer, whatever remains, no matter how improbable, must be the truth. Since there is no "vampiric plague" swarming the earth, the logical deduction is that they don't exist.

Point of clarification about "vampire" bats: vampire is simply the name we have given them because they do drink blood, same as a flea, mosquito, or spider. Are these creatures vampires? No. They are living creatures, not legendary monsters.

Answer 13

Pure fiction, impossible to live forever in a coffin or a dark place only to come out at night to eat or drink blood....Brad Pitt and Tom Cruse are indeed handsome vampires..But Ann Rice had or has a great imagination. So did Edgar Allen Poe but think about it Living for thousands of years hmmm... Years ago when someone thought of these things people did a lot of reading and scaring you was part of the excitement. I know you were just wondering if it could be done but that's my story and I'm sticken to it.