Archive for July, 2011

INVESTIGATIONS OF HEADACHES: VISUAL EVOKED POTENTIALS

Monday, July 25th, 2011


The visual evoked response is a more recent technique that is also based on recording electrical activity from the brain. It is still only a research tool as far as migraine is concerned. When an object is seen, an electrical discharge passes along the optic pathway to cause a specific but tiny response in the brain. When the same impulse is presented repeatedly the responses can be added up by an EEG machine to give a much bigger response, shown on a screen as a wave-form. Using this technique, the time taken for the impulse to travel along the op tic pathway scan is measured, by taking the time from seeing the object (the stimulus) to the peak of the wave. Diseases such as inflammation or pressure on the optic nerve will slow the response, whilst damage to the brain can alter the shape of the wave-form.Because it has been suggested that repeated attacks of severe migraine could possibly damage the brain, VERs have been done in some cases for the purposes of research. Patients with migraine had VERs measured from each side of the head. Migraine patients have a delay in the time interval from the stimulus to the wave, indicating that the nerve impulse travels more slowly through the brain than in non-migrainous subjects. The wave responses, rather than being smaller, were in fact larger, and this did not seem to make sense nor be easily explicable. Those whose headaches were on the left side of the head had a much bigger wave-form than those whose headaches were on both sides or on the right side, another observation for which there is as yet no certain explanation.The prolonged latency can be explained more easily: this is not due to stroke-like damage since in strokes the latencies are normal (only the height of the waves is less). In certain situations changing the neurotransmitters in the brain can alter the latency, so the most likely explanation is that migraine patients have some difference with respect to neurotransmitters. Which neurotransmitter is involved is not yet known, but it is unlikely to be due to noradrenalin or adrenalin since stress can actually speed up the response.These differences between migraine subjects and non-sufferers are still circumstantial and to a large extent contradictory, suggesting again that migraine is possibly not a single disorder.
*39/152/5*

NATURAL MEN’S HEALTH: DIET FOR HEALTH AND VITALITY – A NOTE ON TEA

Saturday, July 16th, 2011


Black tea such as English Breakfast, orange pekoe and Earl Grey all contain some caffeine (half as much as coffee). It has been found that they do contain some anti-oxidants. Green tea, which has not been fermented like black tea, contains double the amount of anti-oxidants and some caffeine.Herbal tea doesn’t contain any caffeine and has numerous active ingredients that assist digestion, the nerves, the lungs and the cleansing of the blood. Water can cause bloating so herbal tea is ideal to drink any time of the day as the pure herb softens the water and has healing properties for the body.Herbal teas can play an important role in preventative health. As a herbalist and naturopath, I have created a range of organic loose-leaf herbal teas. These special teas have a variety of benefits including assisting digestion, helping to soothe the nervous system, and assisting in carrying nutrients around the body and removing wastes from the blood stream.*107\258\8*

HIV: OPTIONS FOR MEDICAL CARE-GLOSSARY OF HOSPITAL PEOPLE AND PRACTICES: THE HOSPITAL BILL

Thursday, July 7th, 2011


The anticipated charge for the average private or semiprivate room in a private hospital is $350 to $600 a day (in 1990 dollars), but it can be over $1,000 in such large metropolitan areas as New York City. Intensive care units are usually $1,000 to $2,000 a day. Additional charges include medications, laboratory tests, physicians’ fees, and specialized procedures like bronchoscopy or operations. The hospital bill is likely to be long and full of medical jargon with lists of numerical codes for every pill and procedure. Physicians’ fees are billed separately from the hospital bill. Insurance companies determine the customary and reasonable charges for both the hospital and the physician and, on that basis, make their payments. Questions about hospital charges should be directed to the hospital billing office or to the patient representative. Questions about a physician’s charges should be directed to the physician. If finances are going to be a problem, the person should inquire about charges for various tests and their alternatives before the tests are done.*169\191\2*