Question 1

why does the heartbeat speed up or slow down?

Accepted Answer

The heart pumps: Blood to nourish and provide oxygen throughout the body and the rate varies based on body needs. For example, physical exertion requires increased blood flow so the heart best faster and stronger. The heart slows down to 'rest' when the need is less. Fear will increase the heart rate to prepare the body for flight or fight regarding any danger. Best regards.

Question 2

why does my heart beat speed up and slow down?

Accepted Answer

It depends: Heart rate varies naturally with your breath. In some folks, it's really obvious & called "sinus arrhythmia" which is not harmful. With that, your pulse consistently slows when you breathe in and speeds up when you breath out. However, there is such a thing as "too fast" usually over 100 at rest, and "too slow", usually under 50 at rest.  See your md if you are not sure.

Question 3

why does my heartbeat speed up whenever i wake up from sleep?

Accepted Answer

Sympathetic action: During sleep, our autonomic nervous system is functioning. When we wake, our conscious (i.e. Sympathetic) nervous system comes into action. This is usually accompanied by an output of Adrenalin from our body. This substance increases our heart rate and blood pressure. It gets us ready for a more active period...Arising.

Question 4

is it normal to feel your heartbeat, i have suffered with palpitations from anxiety but this is different, it's as my heart is beating normal speed but i can feel every beat in my body, i notice it more at night but do get it in the day as well?

Accepted Answer

: This could be part of your anxiety. Best is to see your doc and discuss  how to manage it. Wish you the best

Question 5

allergies & clogged sinus/ears   tinnitus in both ears. had 5 sec. noise in 1 ear like teen's muffler. not heartbeat speed. ear popped & it stopped ??

Accepted Answer

Needs an assesment: This sounds like fluid in the middle ear cavity, Otitis media.
Could be allergy or infection induced.
If painful and throbbing...you may need to treat it.

Question 6

why does my heart speed up when i stand up? my heart has been acting strange lately.  when i am seated my heart beat is normal, around 60 beats per minute.  but when i stand it jumps to around 100 bpm.  should i be worried about this?

Accepted Answer

When : When a person stands up it is normal for the heart rate to transiently increase, but in your case this jump in heart rate is a bit more than expected. You may be dehydrated. When sitting, blood pools in the legs. When a person stands, the heart and blood vessels act in a coordinated way to compensate against gravity and maintain adequate blood flow to the brain. When adequately hydrated, this is easy for the heart to accomplish and the change in heart rate is minimal. If a person is dehydrated, a larger percentage of their blood is pooled in the legs and the upper body blood vessels are relatively depleted. The "tank is empty" so to speak.  In this circumstance it is harder for the heart to compensate for the standing, and in order to maintain an adequate amount of blood flow, the heart has to speed up. Try increasing your fluid intake and avoid excessive caffeine or alcohol, both of which act as diuretics. If your symptoms do not improve, see your doctor for further evaluation.

Question 7

have fast heartbeat  then slows down sometimes skips a beat?

Accepted Answer

Need further evaluat: I would recommend you get an electrocardiogram(ekg) which measures the electrical activity of your heart.  You could possibly be having something known as atrial fibrillation or an irregular type of heartbeat.  You may also consider something called holter monitoring or an event recorder(these measure the electrical activity of the heart over a period of time i.e. 24 hours or more).

Question 8

heartbeat increases randomly. if im sitting down, walking to the mailbox, my heatbeat goes really fast, then i pass out, hardly remembering anything.

Accepted Answer

see your doctor,soon: Sounds like tachyarrythmia, where your heart starts beating so fast that you can't fill the chambers, your output falls, and you succumb to low blood pressure. Don't wait, call your doctor first available time and explained the issue.If you don't have one, or can't get a response, an trip to er is reasonable.Stay off caffeine while you sort this out. Good luck.

Question 9

if i hold my breath my heart slows down? shouldnt it speed up?

Accepted Answer

Heart : With vagal stimulation Induced with deep breath your heart will slow down ...

Question 10

hello. i want to learn if caffeine prevents you from growing taller , or does it slows down your growing speed? thanks in advance .

Accepted Answer

I don't know of any: Studies that show that use of caffiene prevents growth.

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Doctor answers about:

Heartbeat that speeds up and slows down randomly

A member asked:

Why does the heartbeat speed up or slow down?

A member asked:

Why does my heart beat speed up and slow down?

A member asked:

Why does my heartbeat speed up whenever i wake up from sleep?

A member asked:

Is it normal to feel your heartbeat, i have suffered with palpitations from anxiety but this is different, it's as my heart is beating normal speed but i can feel every beat in my body, i notice it more at night but do get it in the day as well?

A member asked:

Allergies & clogged sinus/ears tinnitus in both ears. had 5 sec. noise in 1 ear like teen's muffler. not heartbeat speed. ear popped & it stopped ??

A member asked:

Why does my heart speed up when i stand up? my heart has been acting strange lately. when i am seated my heart beat is normal, around 60 beats per minute. but when i stand it jumps to around 100 bpm. should i be worried about this?

A member asked:

Have fast heartbeat then slows down sometimes skips a beat?

A member asked:

Heartbeat increases randomly. if im sitting down, walking to the mailbox, my heatbeat goes really fast, then i pass out, hardly remembering anything.

A member asked:

If i hold my breath my heart slows down? shouldnt it speed up?

A member asked:

Hello. i want to learn if caffeine prevents you from growing taller , or does it slows down your growing speed? thanks in advance .

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