A summary of what happens to the human body during a hot car death due to hyperthermia.
Agitation. A normal reaction to being hot would be for a child to attempt to remove his or her clothes in an effort to cool off. However, if the child is in a car seat, he or she will probably be unable to do so due to being restrained, which causes the child to feel further agitation.
Agony. One toddler who died in a hot car was so distraught that she ripped out all of her hair due to the extreme agony she was experiencing.
Dizziness, nausea. The normal physical responses to being hot will kick in, such as profuse sweating and thirst. Next, typically, agitation and confusion will set in, often followed by dizziness and nausea.