I've been digging around the Internet and found an Interesting PDF which could answer this question.
To Download Simply visit the following link...
Headaches and PH Levels.
After you have read the document please leave a comment.
Wednesday, 20 January 2010
Sunday, 10 January 2010
Scientists have solved the mystery of why migraine sufferers shun the light.
Light intensifies migraine headaches because of a particular group of retina cells at the back of the eye, research has shown.
The photoreceptors send signals to the brain via the optic nerve which stimulate migraine pain neurons.
Even small amounts of light are enough to affect the nerve pathway, sending victims running for the shadows.
People who are totally blind due to eye diseases such as retinal cancer and glaucoma are not affected by light during migraine attacks, the study found.
But this was not true of "legally blind" individuals with severely impaired eyesight, who cannot make out images but detect the presence of light.
Migraine is a one-sided, throbbing headache associated with symptoms that can include nausea, vomiting and fatigue.
The pain is believed to develop when the meninges - the system of membranes that surround the brain - becomes irritated.
Nearly 85% of migraine sufferers are highly sensitive to light, a condition known as photophobia, but until now no-one understood why.
Professor Rami Burstein, from the Beth Israel Deaconess Medical Centre in Boston, US, who conducted tests on totally and "legally" blind migraine sufferers, said: "While the patients in the first group did not experience any worsening of their headaches from light exposure, the patients in the second group clearly described intensified pain when they were exposed to light, in particular blue or grey wavelengths."
Subscribe to:
Posts (Atom)
