Acute Mountain Sickness is not the happened to everyone everywhere but it is usually happened to hikers, climbers, outdoor enthusiasts, skiers and other people who keen on challenge in higher mountains or plateaus.
Common signs and symptoms of Acute Mountain Sickness includes, also called slight signs and symptoms, includes bad headache, very exhausted at every moment, nausea and vomiting, dizziness, abnormal pant/breath and heartbeat, loss of appetite, and insomnia.
And Acute Mountain Sickness also includes severe signs and symptoms which is the threat of death to people. High Altitude Pulmonary Edema (HAPE) and High Altitude Cerebral Edema (HACE) are main ones of the severe signs and symptoms. .
High Altitude Cerebral Edema is one the signs and symptoms of severe Acute Mountain Sickness, which is usually happened over 4300m mountains. With lack of oxygen of our brain, cranial cavity swells and cranial bone starts extruding the brain tissue, people would die.
If High Altitude Cerebral Edema occurs, the motor nerve will be disordered and Mental State will be changed. But the signs and symptoms are not usually happened to some people who suffer High Altitude Cerebral Edema. So it is better to pay attention the behaviors of your partners.
1.Pace instability and frequently make mistakes.
2.Ataxia: when brain can not work normally, coordination of limbs will be disordered. For example, lie down on the ground, and use your heel to move along your shank of another foot. If couldn't do this well or even worse couldn't lace up your shoes, you are possible to suffer the High Altitude Cerebral Edema.
3.Change in Mental Status such as memory lose, hallucination, or semicoma, catalepsy, people could do some simple math to confirm.
High Altitude Cerebral Edema could be regarded as the severe Acute Mountain Sickness. When people suffer the signs and symptoms of High Altitude Cerebral Edema, you'd better descend to 600-1200m as fast as possible.