Heaches and Weather

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Joined: Fri Feb 17, 2017 9:04 am

Heaches and Weather

Post by iih » Fri Feb 24, 2017 3:19 pm

You may be interested in the following:

We are often asked about the relationship between headaches and atmospheric pressure - so here's a summary:


Here is the website showing the current pressure map for the UK - but it needs some interpretation:

http://www.eldoradocountyweather.com/fo ... ssure.html

Here is the Met forecast pressure map: http://www.metoffice.gov.uk/weather/uk/ ... ssure.html

Here is the regular surface pressure chart : http://www.metoffice.gov.uk/public/weat ... -pressure/

People who feel they are affected by the weather should check the charts - even perhaps have a simple barometer properly calibrated to their location.

High pressure brings good weather and low pressure means cloud, wind and rain - usually...

But in winter high pressure means clear skies and frost.

Doctors explain that tall people suffer more from varicose veins because the blood pressure in their legs is higher - it pools to the lower body when walking/standing

Astronauts in extended microgravity suffer from papilloedema because the CSF maximum fluid density pools in their heads not in the lower spine through normal gravity.

IIH sufferers have too much CSF for the space available - lower spine is saturated and so is the head - causing overpressure. (overfull milk bottle syndrome!)

Then when the atmospheric pressure is greater than normal they may well get even more headaches or worse headaches than normal. This because the fluid is 'trapped' inside a confined space defined by the Monro-Kellie Rule:

The pressure-volume relationship between ICP (intracranial pressure), volume of CSF (cerebrospinal fluid), blood, and brain tissue, and cerebral perfusion pressure (CPP) is known as the Monro-Kellie doctrine or the Monro-Kellie hypothesis.



The standard normal atmospheric pressure at sea level is: 1013.25 millibars

Highest pressure ever recorded on Earth: 1085.6 mb (Mongolia)

Lowest pressure ever recorded on Earth 870 mb inside a typhoon in the western Pacific Ocean

UK records are:

High: 1055 - Aberdeen

Low: 925.6 - Perthshire


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