Can you 'blow your heart up'

Nzyme said:
Maybe not blow up but certainly if you over stress your heart it'll give in same with any muscle, being too active could kill you.
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You'll vomit and pass out before. I've been to that place :(

You do get high intensity sports people having heart attacks at a young age, but the heart is not like any other muscle in the body. It's striated like skeletal but fused like smooth and is rather unique .It is also always in systole or dyastole, and so never actually 'at rest'. When it's going hell for leather you reduce your stroke volume and efficiency of oxygen delivery, I believe this contributes to dizziness and loss of consciousness (lack of available ATP, through diminished glycogen, is I believe also a possible contributor).

Ant :cool:

EDIT: Foolish response, I thought I was in SA :p
 
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Mine often increases to well over 200bpm when i'm excercising and on rare occasions when i'm not. If it happens when not i usually find i have to do something active to refrain from feeling like i'm about to pass out. This speed can last for a few hours.

Its amazingly good fun though and my reactions are a lot quicker when it does it. My sister has the same but she faints instead of it being good. She had to go for several ECG's and had heart monitors attached.
 
Jotun said:
I hope not, I'm sure I've read your maximum HR should be 220 minus your age, putting mine at about 200, but I've had it up to 206 before :eek: quite often to have it between 180-190 for me if it's been a while between gym visits.
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That is dangerously high.
 
I usually hit around 185-190ish. I'm 24...when I'm at that rate I tire very quickly though...it's when I'm pushing 100%. My heart does seem to thunder in my ears but if you are pushing yourself I guess that's to be expected.
 
namnoc said:
Has anyone ever tried to add a 2nd heart to a human body? A dual pumped system?
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It's standard practice in some heart ops to leave the old heart in place. Have a look at this.
http://news.bbc.co.uk/1/hi/health/4904914.stm
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That's an amazing story, what a trooper as well. She has all this heart trouble and then fights cancer while she's at it.
 
it can tear, leaving blood to pocket around it and cause a massive amount of pressure. not to sure about it actly exploding like a frag tho :S?
 
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