Physiological effect · Space Medicine
Cardiovascular Deconditioning
The heart and blood vessels adapt to weightlessness, and the heart can weaken without the constant work of pumping against gravity. Crews often experience orthostatic intolerance — dizziness on standing — when they return to gravity.
Countermeasures
How this effect is mitigated.
Studied aboard & related
Knowledge connections
- Member of groupSpace Medicine
- Associated withInternational Space Station
- Mitigated byAerobic Exercise
- Mitigated byLower-Body Negative Pressure
- Mitigated byArtificial Gravity
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.