STS-44 Mission Highlights
The crew took part in a variety of continuing medical investigationsof the effect of weightlessness
on the human body and methods of counteracting those effects. Among the medical studies
was the use of the Lower Body Negative Pressure unit, an often-flown device that uses
low pressure to pull body fluids back to the lower extremities, counteracting the tendency
for such fluids to rise to the upper body in weightlessness.