blood pressure: highest and lowest

Chatfree

It is said that the human being's blood pressure chhanges in a circle
of 24 hours. My questions are following:

1. When is the highest and when is the lowest?

2. What is the range for most people? Or is the range a
constant for everybody? Is there a optimal range?

3. Is the range supposed to be same for people with high
blood pressure, too?

Thanks.

Dr. Andrew B. C

freechat52@yahoo.com (chatfree) wrote in message news:<167f8eb4.0404031543.24182a86@posting.google.com>...
> It is said that the human being's blood pressure chhanges
> in a circle of 24 hours. My questions are following:
>
> 1. When is the highest and when is the lowest?

Typically highest in the morning and lowest in the morning.

This is the reverse for people who have been chronically
working the night shift,

> 2. What is the range for most people?

About 10-20 mmHg systolic and 5-10 mmHg diastolic.

> Or is the range a constant for everybody?

No.

> Is there a optimal range?

Not known.

> 3. Is the range supposed to be same for people with high
> blood pressure, too?

It is often exaggerated in folks with high blood pressure.

> Thanks.

You are welcome.

Servant to the humblest person in the universe,

Andrew

--
Dr. Andrew B. Chung, MD/PhD
Board-Certified Cardiologist
http://www.heartmdphd.com/

**
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Derek F

"Dr. Andrew B. Chung, MD/PhD" <nospam4@heartmdphd.com> wrote in message
news:be38d918.0404050608.7d35d2dc@posting.google.com...
> freechat52@yahoo.com (chatfree) wrote in message
news:<167f8eb4.0404031543.24182a86@posting.google.com>...
> > It is said that the human being's blood pressure
> > chhanges in a circle of 24 hours. My questions are
> > following:
> >
> > 1. When is the highest and when is the lowest?
>
> Typically highest in the morning and lowest in the
> morning.
>
> This is the reverse for people who have been chronically
> working the night
shift,
>
> > 2. What is the range for most people?
>
> About 10-20 mmHg systolic and 5-10 mmHg diastolic.
>
> > Or is the range a constant for everybody?
>
> No.
>
> > Is there a optimal range?
>
> Not known.
>
> > 3. Is the range supposed to be same for people with high
> > blood pressure, too?
>
> It is often exaggerated in folks with high blood pressure.
>
> > Thanks.
>
> You are welcome.
>
>
> Servant to the humblest person in the universe,
>
> Andrew
>
> --
> Dr. Andrew B. Chung, MD/PhD Board-Certified Cardiologist
> http://www.heartmdphd.com/
>
I can never understand why when I am supposedly at my most
relaxed (asleep) that my BP is rising to it's daily peak.
Can you explain why "It is often exaggerated in folks with
high blood pressure" Would taking medications at night
instead of morning normally help? Derek.

Dr. Andrew B. C

Derek F wrote:

> "Dr. Andrew B. Chung, MD/PhD" <nospam4@heartmdphd.com>
> wrote in message
> news:be38d918.0404050608.7d35d2dc@posting.google.com...
> > freechat52@yahoo.com (chatfree) wrote in message
> news:<167f8eb4.0404031543.24182a86@posting.google.com>...
> > > It is said that the human being's blood pressure
> > > chhanges in a circle of 24 hours. My questions are
> > > following:
> > >
> > > 1. When is the highest and when is the lowest?
> >
> > Typically highest in the morning and lowest in the
> > morning.
> >
> > This is the reverse for people who have been chronically
> > working the night
> shift,
> >
> > > 2. What is the range for most people?
> >
> > About 10-20 mmHg systolic and 5-10 mmHg diastolic.
> >
> > > Or is the range a constant for everybody?
> >
> > No.
> >
> > > Is there a optimal range?
> >
> > Not known.
> >
> > > 3. Is the range supposed to be same for people with
> > > high blood pressure, too?
> >
> > It is often exaggerated in folks with high blood
> > pressure.
> >
> > > Thanks.
> >
> > You are welcome.
> >
> >
> > Servant to the humblest person in the universe,
> >
> > Andrew
> >
> > --
> > Dr. Andrew B. Chung, MD/PhD Board-Certified Cardiologist
> > http://www.heartmdphd.com/
> >
> I can never understand why when I am supposedly at my most
> relaxed (asleep) that my BP is rising to it's daily peak.

Your body is getting ready for the awakening.

> Can you explain why "It is often exaggerated in folks with
> high blood pressure"

There are multiple factors. The best way to understand it is
to study the equation:

BP=CO*SVR

Where BP is Blood Pressure, CO is Cardiac Output, and SVR is
Systemic Vascular Resistance.

CO= SV*HR

Where SV is Stroke Volume and HR is Heart Rate.

The expanded equation is therefore BP=SV*HR*SVR.

Because all three variables that define BP are
functions of time:

The further expanded equation is:

BP(t)=SV(t)*HR(t)*SVR(t).

Moreover, SV(t) is affected by heart rate, contractility
(affected by hormones), and blood pressure itself.

You should now sense that there is many levels of regulation
involved in the control of blood pressure as a function of
time. When blood pressure stays abnormally elevated at rest,
this indicates a problem with regulation of blood pressure.
Such problems from a systems perspective will typically
alter the behavior of the system (exaggerated swings in
pressure) along with the setpoint.

> Would taking medications at night instead of morning
> normally help?

It can blunt the morning rise in blood pressure.

Servant to the humblest person in the universe,

Andrew

--
Dr. Andrew B. Chung, MD/PhD
Board-Certified Cardiologist
http://www.heartmdphd.com/

**
Who is the humblest person in the universe?
http://makeashorterlink.com/?W1F522557

What is all this about?
http://makeashorterlink.com/?J2DB148A7

Is this spam?
http://makeashorterlink.com/?N69721867

Derek F

"Dr. Andrew B. Chung, MD/PhD" <andrew@heartmdphd.com> wrote in message
news:40719945.6CFF71D9@heartmdphd.com...
> Derek F wrote:
>
> > >
> > I can never understand why when I am supposedly at my
> > most relaxed
(asleep)
> > that my BP is rising to it's daily peak.
>
> Your body is getting ready for the awakening.
>
> > Can you explain why "It is often exaggerated in folks
> > with high blood pressure"
>
> There are multiple factors. The best way to understand it
> is to study the equation:
>
> BP=CO*SVR
>
> Where BP is Blood Pressure, CO is Cardiac Output, and SVR
> is Systemic
Vascular
> Resistance.
>
> CO= SV*HR
>
> Where SV is Stroke Volume and HR is Heart Rate.
>
> The expanded equation is therefore BP=SV*HR*SVR.
>
> Because all three variables that define BP are functions
> of time:
>
> The further expanded equation is:
>
> BP(t)=SV(t)*HR(t)*SVR(t).
>
> Moreover, SV(t) is affected by heart rate, contractility
> (affected by
hormones),
> and blood pressure itself.
>
> You should now sense that there is many levels of
> regulation involved in
the
> control of blood pressure as a function of time. When
> blood pressure stays abnormally elevated at rest, this
> indicates a problem with regulation of
blood
> pressure. Such problems from a systems perspective will
> typically alter
the
> behavior of the system (exaggerated swings in pressure)
> along with the
setpoint.
>
>
>
> > Would taking medications at night instead of morning
> > normally help?
>
> It can blunt the morning rise in blood pressure.
>
>
> Servant to the humblest person in the universe,
>
> Andrew
>
> --
> Dr. Andrew B. Chung, MD/PhD Board-Certified Cardiologist
> http://www.heartmdphd.com/
>
My doctor once muttered "Hormones" when I put the question
to him. So my next question is which hormone and what can be
done to restrain it? Derek.