A 39-year-old male asked:
Disclaimer

When I am asleep, I am suddenly jolted awake with what seems like an extremely strong single heart beat. Extreme chest jolt. What could this mean?

1 doctor answer
Dr. Milton Alvis, jr
40 years experience in Preventive Medicine
C/W arrhythmia early: heart beat (vs previous heart rate) which is inherently weaker (↓ time for & quantity of blood return into ventricles; resulting in ↓ intensity of heart muscle contraction; both internal heart & split-second brain control), resulting in ↓ intensity of contraction, pump & artery expansion. The following heart beat pumps both usual volume plus additional not pumped by previous, thus more intense.
Answered on Jun 19, 2015
1
1 comment
Dr. Milton Alvis, jr
40 years experience in Preventive Medicine
Provided original answer
There are many other possibilities for what you describe, including body muscle myoclonic jerks; study: https://en.wikipedia.org/wiki/Twitch, https://en.wikipedia.org/wiki/Spasm, https://en.wikipedia.org/wiki/Myoclonus, http://en.wikipedia.org/wiki/Hypnic_jerk for some discussions. No one really understands the causes but a variety of of observations and theories are proposed.
Dec 31, 2014

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month

Related questions:

A 25-year-old female asked:
Dr. Bert Liang
Specializes in Neurology
Hypnogogic panic: Hypnagogic (ie falling asleep) panic attacks occur, often part of a myriad of symptoms in this transitional state between wakefulness and sleep (hypna ... Read More
1
1 thank
A 46-year-old member asked:
Dr. Venkata Chilakapati
22 years experience in Cardiology
A sleep: Heart and chest are not sleep. That's you are still alive. You feeling like that because of abnormal perception or thought process. You can talk about ... Read More
A 26-year-old female asked:
Dr. Amrit Singh
50 years experience in Cardiology
Nothing: no disease, do regular waling exercise for i hr.
A 23-year-old female asked:
Dr. Donald Colantino
60 years experience in Internal Medicine
Chest pains: Fleeting, sharp chest pains may be due to a pinching of an intercostal nerve or muscle that runs between 2 ribs. These pains may be brought on or aggr ... Read More
1
1 thank

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month