High blood pressure and sleep

feistylioness Community Member March 14, 2008
  • Hello, I am 51yrs old and have been diagnosed with high blood pressure.

    When i go to sleep at night my pressure is normal but when I wake up it is extremely high. It's as if I'm eating salt in my sleep. Does anyone know why this is happening or how?

     

2 Comments
  • Anonymous
    medchick
    Nov. 15, 2008

    Hi,

     

    High nighttime blood pressure is a greater predictor of cardiac/stroke events than day-time pressures.

     

    Daytime pressures are controlled by the sympathetic nervous system, while nighttime pressures are controlled by a different system -the renin(pressure raising hormone) angiotensin control system.

     

    Talk to your doctor about these...

    RHMLucky777

    Read More

    Hi,

     

    High nighttime blood pressure is a greater predictor of cardiac/stroke events than day-time pressures.

     

    Daytime pressures are controlled by the sympathetic nervous system, while nighttime pressures are controlled by a different system -the renin(pressure raising hormone) angiotensin control system.

     

    Talk to your doctor about these two different control systems and how you might best dose your blood pressure medicine to address the high waking numbers presumably representing high sleep numbers.

     

    ACE inhibitors (angiotensin converting enzymes) like lisinopril block the hormone, renin.  Lisinopril begins its antihypertensive effects about 1 hour after ingestion and reaches its peak blood pressure reduction effects at 6 hours.  The blood pressure reduction capacity is significantly lowered at 24 hours. 

     

    Perhaps you might consider taking your pressure medicine at bedtime ir you are not already doing so.

     

    Also, consider studies that show that melatonin (a sleep stimulating hormone naturally produced by the body) taken in a time-realease form can reduce nighttime systolic and dyastolic pressures by moderate increments.  Although the reduction in actual numbers is moderate, the multi-fold effect is still significant.

     

    Our body's ability to produce melatonin decreases with aging.  So you might consider a higher than 2.5mg time-release dose depending on your age.

     

    Vitamin D3 also blocks production of the blood pressure raising hormone, renin.  Studies are showing an increase in blood pressure among all groups during the winter vs. summer.  While some of the increase is believed to be realated to winter weight gain, another factor is the reduced exposure to vitamin D producing sunlight as days become shorter and less skin is exposed by virture of wearing additional clothing etc.

     

    All of the major news networks have come out with stories reporting the role or vitamin D 3 (the most bioavailable form, i.e, your body can easily access it) in preventing a wide range of disease.  Harvard studies suggest a dose of 2,000 International Units per day for women can reduce the incidence of breast cancer by 20%.  The old recommendation of 400 IU is under review due to the weight of multiple studies. 

     

    Personally, I am confident enough in my own research, given my particular medical needs to be taking 6,000 IU.

     

    I'm sure you already understand the relationship betweem sodium/ water retention/blood volume and blood pressure.  So, eliminating salt, perhaps particularly in the hours preceding bedtime might be helpful.

     

    I am not a physcian, but do biomedical research on my own.  Don't make any changes without clearing it with your doctor.  To my knowledge, there is at least one blood pressure medication that has a negative interaction with melatonin.  Because I am not a physician, all appropriate disclaimers apply.

     

    All of this information is available online, using appropriate search terms.

     

    Good luck.

  • Sue
    Sue
    Mar. 17, 2008

    Hello:

     

    Thanks so much for your post.  I am a moderator for the site and though not medically trained, I am able to help find the answers to your questions.

     

    You should read The Basics of High Blood Pressure.  It is a great overview of hypertension. As well, check out the symptoms of high blood pressure.

     

    Thanks again and hope this helps....

    RHMLucky777

    Read More

    Hello:

     

    Thanks so much for your post.  I am a moderator for the site and though not medically trained, I am able to help find the answers to your questions.

     

    You should read The Basics of High Blood Pressure.  It is a great overview of hypertension. As well, check out the symptoms of high blood pressure.

     

    Thanks again and hope this helps.

     

    All the best, sue