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.
pleural space
heart attack
Your heart rate increases.
it flys
Your heart beats slowly when you sleep.
Your heart rate increases.
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.
the chest
You Would Sufficate, For There Is No Oxygen In Space.
the heart pumps blood into your veins and arteries whenever your heart beats
Well if you beat the game without getting no heart containors Nothing happens
it disinigrates