Astronauts have a unique problem. They must take exceptional prevention measures against certain health issues, including:
- Bone density depletion
- Muscular atrophy
- Metabolic rate change
- Loss of body mass
- Cardiovascular breakdown
- Decreased immune system
Astronauts must carry food that is presevered, dehydrated, or freeze-dried. They are also in an environment where they are exposed to high amounts of radiation, and they need to artificially regulate the oxygen, CO₂, and temperature in the environment.
NASA did a research project in the 70s that concluded that spirulina is one of the most powerful concentrated foods available to mankind — and especially to astronauts — for increased immune function and removal of toxins.
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