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How does microgravity affect us?

  1. Dec 14, 2004 #1
    How does microgravity affect us, in paricular our cardiovascualar system and heart functioning?
  2. jcsd
  3. Dec 14, 2004 #2


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    One well known effect is that under microgravity, bones start to weaken.
  4. Dec 14, 2004 #3


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    The effects of microgravity on human physiology is one of the things being studied on the International Space Station. I'd have to check around to see what the latest data area, but as Monique said, there is a loss of bone mass (very serious concern). Also, muscles weaken from lack of use (something which can be fixed).
  5. Dec 17, 2004 #4
    How does microgravity affect functioning of our heart?
  6. Dec 17, 2004 #5
    Based on Phobos' reply, I would assume that the muscles in the heart would also become weakened due to the reduced effort required to pump blood around the body.. so a returning pilot may have difficulties once back on earth.
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