Articles tagged with Astronauts
A study by NASA's Johnson Space Center found that spaceflight increases the levels of Epstein-Barr virus (EBV) in astronauts' saliva samples. EBV can cause glandular fever and has been associated with Burkitt's lymphoma, a type of cancer common in Africa.
NASA gave astronauts melatonin to improve sleep, but found no benefit; instead, electrodes seemed to help them relax and sleep better. Astronauts' duties likely cause insomnia, and monitoring equipment helps them see sleep as part of their mission.
Researchers have developed a unique antenna design called the Orlan antenna to provide communications and vital signs for astronauts on the International Space Station. The antenna's special loop design couples sufficient energy to transmit radio-frequency signals while minimizing reflections.
Orthostatic intolerance affects at least 70% of returning astronauts due to the body's adaptation to weightlessness. Astronauts often struggle with standing and may have puffy faces and thin legs during and after space travel. Researchers are studying this condition to improve astronaut health for future long-duration missions.