In a 2009 study, researchers at Harvard's MassGeneral Hospital for Children as well as other institutions analyzed the blood oxygen levels of newborns when they were placed in cribs versus car seats and found that nearly one - quarter of the time that the babies were in car seats, their oxygen saturation levels (the ratio of oxygen - saturated hemoglobin to total hemoglobin in their blood) dropped below 95 percent, the cutoff for what is considered norma
In a 2009 study, researchers at Harvard's MassGeneral Hospital for Children as well as other institutions analyzed the
blood oxygen levels of newborns when they were placed
in cribs versus car seats and found that nearly one - quarter of the time that the babies were in car seats, their oxygen saturation levels (the ratio of oxygen - saturated hemoglobin to total hemoglobin in their blood) dropped below 95 percent, the cutoff for what is considered norma
in cribs versus car seats and found that nearly one - quarter of the time that the babies were
in car seats, their oxygen saturation levels (the ratio of oxygen - saturated hemoglobin to total hemoglobin in their blood) dropped below 95 percent, the cutoff for what is considered norma
in car seats, their
oxygen saturation
levels (the ratio of
oxygen - saturated hemoglobin to total hemoglobin
in their blood) dropped below 95 percent, the cutoff for what is considered norma
in their
blood) dropped below 95 percent, the cutoff for what is considered
normal.
The affected hamster heart can not pump effectively and leads to poor circulation, which
in turn causes difficulty breathing from fluid build - up
in the lungs, weakness due to reduced
levels of
oxygen in the
blood, and rapid tiring during
normal activities, such as walking or even eating.