A physician-astronaut explains how space affects human physiology

Michael Barratt, MD (photo by Jim Howe) Michael Barratt, MD (photo
by Jim Howe) Astronauts who are selected for spaceflights are
generally healthy, but they may face a variety of medical issues
during their missions, starting with motion sickness as they get
used to a lack of gravity, says Astronauts who are selected for
spaceflights are generally healthy, but they may face a variety of
medical issues during their missions, starting with motion sickness
as they get used to a lack of gravity, says Michael Barratt, MD.
Michael Barratt, MD. He is one of the nation's few specialists who
is dually trained and certified in both internal medicine and
aerospace medicine, and he has participated in two spaceflights.
Barratt, who works at the Johnson Space Center in Houston as an
active astronaut, speaks  about common medical issues of space
travel, which include back pain, foreign bodies in the eye,
headaches and sleep difficulty. Barratt, who He is one of the
nation's few specialists who is dually trained and certified in
both internal medicine and aerospace medicine, and he has
participated in two spaceflights. Barratt, who works at the Johnson
Space Center in Houston as an active astronaut, speaks  about
common medical issues of space travel, which include back pain,
foreign bodies in the eye, headaches and sleep difficulty. Barratt,
who holds an honorary doctorate from Upstate, holds an honorary
doctorate from Upstate, also discusses the short- and long-term
effects of space travel.  also discusses the short- and
long-term effects of space travel.