Following the previous article, this chapter continues the discussion on the challenges faced during space missions and their corresponding countermeasures.
To safeguard astronauts’ physical and mental health, comprehensive preventive and support systems must be established to manage potential risks and provide emergency response strategies for both common and critical medical situations.
By Joseph Shen, Vice President of Medical Affairs, Be Accelerator
Preventive Measures and Health Support in Space Missions
Multiple countermeasures are employed in space missions to maintain astronauts’ well-being.
Exercise and nutrition programs help combat muscle and bone density loss, while specially designed dietary plans maintain nutritional balance.
Radiation-protective materials are used to minimize exposure risks, and radiation levels are continuously monitored.
Daily life routines emphasize adequate sleep, with artificial lighting systems simulating circadian rhythm regulation.
Additionally, psychological support systems—including video communications with family and friends—are vital in reducing stress and isolation during missions.
Together, these interventions mitigate the physical and psychological effects of prolonged spaceflight, ensuring astronaut health and performance throughout missions.
Adapting to Microgravity: Space Motion Sickness, Vestibular Adjustment, and Emergency Surgery
Space Motion Sickness refers to discomfort caused by impaired balance perception under microgravity, often leading to dizziness and nausea.
Vestibular adaptation describes the process by which the human body adjusts to microgravity, commonly resulting in disorientation or spatial confusion.
Preventive strategies include rotational chair training, visual adaptation exercises, and anti-nausea medications.
Since these symptoms are among the most common physiological challenges in space, future research will focus on improving preventive methods and understanding vestibular adaptation mechanisms more deeply.
In case of medical emergencies, immediate care is limited. Therefore, emergency response protocols must be pre-established.
Conducting surgery in space presents additional challenges—microgravity, limited resources, and environmental control—necessitating specialized equipment and astronaut emergency medical training.
Telemedicine and remote data management from Earth-based medical teams provide crucial real-time support in such scenarios.
Radiation Exposure: A Persistent Challenge
Space radiation includes cosmic rays and solar particle events, characterized by high energy and deep tissue penetration.
Long-term exposure can lead to cellular damage, immune suppression, cardiovascular diseases, cognitive decline, and reproductive complications.
Protection measures include shielding with specialized materials, continuous radiation monitoring, and long-term epidemiological follow-up of astronaut health.
As space missions extend to lunar and Martian explorations, radiation management becomes an increasingly critical research frontier.
Opportunities in Space Medicine
The growing duration of space travel underscores the need for new technologies in remote diagnosis and treatment, advanced radiation-resistant materials, and international collaboration in medical research and ethical policy development.
Beyond health maintenance, space provides a unique microgravity laboratory for biological and medical discoveries.
Scientists are experimenting with 3D bioprinting of human tissues for transplantation—an innovation that could revolutionize medicine on Earth.
Microgravity also promotes superior protein crystallization, producing larger and purer crystals.
Recent experiments involve growing inorganic pyrophosphatase (PPase) protein crystals in orbit—an enzyme essential for bone formation and DNA synthesis—while studying how microgravity affects microbial motility and behavior.
These findings not only contribute to future space health systems but also expand our understanding of life sciences beyond Earth.
For more information, please contact: Joseph.Shen@be.tworg.app
