Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties

156 Doctors Online
Doctor Image
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

I will be looking into your question and guiding you through the process. Please write your question below.

Why does the heart beat faster after a heavy meal ?

why does the heart beat faster after a heavy meal ??? why does the heart beat faster after a heavy meal ???
Tue, 15 Dec 2009
Report Abuse
  User's Response
's  Response
The brain's task is to match blood-flow "demand" and 'supply". Demand varies all day. After meals the digestive system requires more blood to flow , -i.e., "demand" increases and the brain does three things : (1) it increases the amount of blood ejected by each stroke of the heartbeat (2) it increases the number of heart beats per minute, and (3) it dilates the blood vessels (particularly those associated with digestion) to help flow, - that is, blood is diverted from other organs to the digestive organs. So, .... you get a stronger pulse, a faster pulse, and most people would feel sleepy after a heavy meal, because some of the cardiac output is diverted FROM other organs (including the brain) TO the digestive tract. It, (blood) flows better through the dilated blood vessels (arteries, arterioles, and capillaries) of the stomach etc.
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on
 

Related questions you may be interested in

doctor1 MD

I have been told after testing by a cardiologist that I have a heart murmur and given three daily prescriptions which I take faithfully ever day. Today though it feels as if my heart is being squeezed painfully and then after that pain passes, it feels as though my heart beating so hard that it would break through my ribcage. Why?

doctor1 MD

hey, i have been randomly getting mild chest pains on the left hand side of my chest, my heart will sometimes start beating faster lasting from a few seconds to a few minutes, this will happen a few times a day, ranging from not less than 5 and up to 20(maybe even more i loose count). also have mild pain in the left side of my jaw. I have been to the hospital and got my heart scanned by EKG (i think its called) and have had Xray s, and blood tests, the doctors told me that my heart is fine, however i beg to differ, I use to drink ALOT of energy drinks ranging from 1 to 3 litres daily, also use to be a heavy smoker but have recently given up and use to eat very fatty unhealthy foods such as macdonalds pizzas and deepfried foods on a daily basis, i weigh only 62 kgs and i am only 21 years of age 175cm tall and not keen to die yet... also have been getting heart palpitations after smoking hence why i have recently quit smoking

doctor1 MD

Hi i am 30 year old male who was hospitalized 3 months ago for atrial fib. Had the whole gambit of tests and all seemed ok. I was put on beta blockers then a heart monitor a month later for massive palpations and rapid beat. i was put on another med after to regulate heart rate. Now i still experience palpataions and i can feel when they are about to happen. also extreme fatigue and some weakness. What is the issue here? i do smoke but not massive smoker. I did gain 20 pounds since the hospital stay which i have never been able to do. Wonder what id happenin here.