Did you know there is proof of vampires existence?

I wouldn't use that website as a source
for your information about vampires.
However, there is a explanation for
what we call vampires.
There is a condition called Cutaneous
Porphyria. It is a hereditary deficiency in
the body's enzymes that causes severe
light hypersensitivity, whereby if the
person is exposed to any light, they feel
excruciating pain and their skin can
bubble and break out in blisters. As well
as some other symptoms Porphyria also
causes the sufferers gum's to
deteriorate.
Now you know the facts, lets add it to
the myth. Vampires can not go out in
sunlight, they sleep in coffins, can not
see themselves in mirrors, and drink
blood. In the old days, there was no
treatment for Porphyria, all sufferers
could do to avoid the pain would be to
only venture out in the dark of night.
They would wear dark clothing so that
light is absorbed and not reflected, and
looking in a mirror meant there was
light to be able to see your reflection, so
of course would never look in mirrors.
On top of this, they would have to sleep
in boxes during the day to ensure all
light would be blocked out while they
slept, and would have looked an awful
lot like coffins. As you can imagine from
the lack of exposure to the sun, their
skin was extremely white. And because
their gum's deteriorate, their teeth
would also look extended, much like
fangs. Now here's the kicker. The only
relief these sufferers could get for their
pain, is a dose of those enzymes that
their body's were unable to produce.
There was no medical technology in
those days that could create those
enzymes and inject them. The only way
to get access to those enzymes, was in
blood. Some sick individuals may have
started drinking the blood of small
animals to get this relief, and then
carried on to humans. The best place to
get a blood from a human to drink it, is
the jugular vein, which is located in the
neck.
Is this all starting to look familiar to
you?
I have no idea where the idea of super
strength, hatred of garlic, and the
crucifix come in, but I'm sure by now
you can see how a simple medical
condition, through a lack of
understanding has become transformed
into this romanticised version of
vampires.