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1. 

   cryptoxmit
   January 26th, 2011 - 04:10

   If you are bundled up … and it is not brutally cold … the effect on your blood pressure would be negligible … but as core body temperature drops … basal metabolic rate decreases … thus your heart rate … and subsequently your blood pressure …

   As far as asthma …. a high percentage of patient’s will have negative consequences when breathing cold air .. mind you .. not everyone … but a good bit … as you breathe in the air … the body will generally release histamine … which is a potent bronchoconstricting agent … the more hyperesponsive the airways are … the worse the response ….
2. 

   kacey
   January 26th, 2011 - 04:10

   I don’t know about hypertension, but it makes my asthma much worse! Lungs don’t like cold air, so that’s why. I doubt it would have much of an effect on blood pressure, except in your extremities (hands, feet), where the pressure might go down if they get really cold.
3. 

   Pat
   January 26th, 2011 - 04:10

   If you notice that your asthma symptoms start up or worsen when the weather changes or it’s very hot or very cold, then weather may be one of your triggers, and you should take steps to avoid the impact, or at least lessen it, as much as possible. For example:

   * Limit outdoor activities when pollen and mold counts are high, or during hot or cold weather.
   * Wear a scarf over your mouth in cold weather to warm the air before it hits your airways.
   * Always keep your rescue inhaler close by.
   * Add weather to your Asthma Action Plan.

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