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Yes, this is because there is no gravity for your heart t fight againts while it is pumping blood to the head. This is likely similar to when you stand upside down and the blood rushes to your head. And so as less force is required the muslce starts to deteriorate, of course it is still nesessary and increased peripheral resistance will mean it still required quite alot of force so it might not be a drastic as youd think, probably about as much as an athlete taking a few weeks off and jsut chilling. Interestingly reinsertion into the normal environment (earth) causes autonomic changes that can challenge the adaptions of peripheral resistance and may lead to an ailment called presyncope.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoA weak heart is always a problem. However in micro gravity muscles do not have to work so hard as they do not have to overcome the force of gravity, this can be beneficial and detrimental. Muscles need to be exercised or they atrophy or waste away though non use.
Wiki User
∙ 14y agoYour heart shrinks because you don't have to work as much in space.
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What is the space between the heart that holds the heart?
pleural space
What happens when you have a infarct in your heart?
heart attack
What happens when a space-shuttle launches?
It goes into space
What happens when your in a space shuttle going to space?
it flys
What happens to the heart when you smoke?
Your heart rate increases.
What happens to muscle and bones in space?
the astronaut heart and muscles and bones shrink and get weaker ...this because: the earth's gravitational pull is strong so the heart pumps blood harder than it needs to in space so when a astronaut is in orbit it doesn't need to work so hard so they shrink. hope this helps.
What is thoracic space?
The space inside the ribcage that holds the heart and lungs.
What space does the heart lies in?
the chest
What happens if you breathe in space?
You Would Sufficate, For There Is No Oxygen In Space.
What happens to your heart when you sleep?
Your heart beats slowly when you sleep.
What happens to the heart when you smoke marijuana?
Your heart rate increases.
What happens to a space shuttle once it launches?
it goes up in to space
