National Space Biomedical Research Institute (NSBRI) researcher, Dr. Babs Soller of the University of Massachusetts Medical School, has been working to develop techniques for non-invasive measurement of blood and tissue chemistry. Her work can be used to help monitor the health of astronauts in space.

National Space Biomedical Research Institute (NSBRI) scientist Scott Dulchavsky has developed a technique to train space flight crews to conduct medical-quality ultrasound imaging in space.

David Dinges, a professor at the University of Pennsylvania School of Medicine, is working with the National Space Biomedical Research Institute (NSBRI) to develop a test that helps astronauts to gauge fatigue and stress during long missions in space.

Neuroscientist George Brainard is working with the National Space Biological Research Institute (NSBRI) on research into the effects of space flight on circadian rhythms, which will, hopefully, improve the quality of astronauts' sleep.

Benjamin Levine, team lead for National Space Biomedical Research Institute (NSBRI) Cardiovascular Alterations Team, talks about the need to maintain fitness during space missions. How can astronauts maintain fitness during space missions? What are the best exercises?

National Space Biomedical Research Institute (NSBRI) Scientist Kim Prisk talks about the health hazards of lunar dust. Like beach sand on Earth, dust on the moon gets into everything. What is lunar dust? Why is it a problem for future lunar explorers?