Army researchers look at the science behind cooling down

Capt. Dave DeGroot puts volunteers into a water immersion tank at the U.S. Army Institute of Environmental Medicine at Natick Soldier Systems Center as part of a study that is looking at how Soldiers' bodies cool down. (Photo by David Kamm, NSRDEC)

Capt. Dave DeGroot puts volunteers into a water immersion tank at the U.S. Army Institute of Environmental Medicine at Natick Soldier Systems Center as part of a study that is looking at how Soldiers’ bodies cool down. (Photo by David Kamm, NSRDEC)