i have read this question on a site.can anyone tell me its answer?

Question

Persons who have been submerged in very cold water and who are believed to have drowned sometimes can be revived. On the other hand, persons who have been submerged in warmer water for the same length of time have died. Explain this in terms of factors that affect the rates of chemical reactions.

Answer 1

Hypothermia: This phenomenon explains the good outcome of victims who are submerged in icy waters for up to 45 minutes (and occasionally longer). When submerged in icy cold water, the body temperature drops rapidly to a point where body activity and metabolism come to a virtual standstill. If this standstill develops before available oxygen is completely used, the hypothermia confers a protective effect. The remaining oxygen is used slowly and the body can survive submersion for a longer period of time before irreversible anoxic tissue damagedevelops. In most other instances, (non-icy water drowning), the victim's temperature will drop too slowly to confer any protective effect. In addition, cold water may stimulate the mammalian diving reflex, which may prolong survival in cold water. The diving reflex slows the heartbeat and redirects the flow of blood from the hands, feet, and intestine to the heart and brain, thus helping to preserve these vital organs. The diving reflex is more pronounced in children than in adults; thus children have a greater chance of surviving prolonged submersion in cold water than adults.

Answer 2

properly Diva, each and every each and every now and then i'm a dyslexic reader and misread and get issues all mixed up so as quickly as I study it I study it backwards and later as quickly as I re study it i'm like what the heck replaced into I thinking? Or I study what i think of i could question that's all a strategies trick i assume. possibly for this reason some teenagers accomplish that poorly on their college paintings.

Answer 3

well, if the water is cold, it slows down your system to try to keep warm, there are things that can be done, for example: using a bypass machine to warm the body using warm water. As for the warm water part of the question, the warm water will not shut down your system to try to retain body heat as the cold water would.

Answer 4

I don't know exactly what happens. But this is similar to some surgery methods where they cover people in ice stop their heart and they are clinically dead. These people are then warmed up and heart restarted and are fine.

I assume it is something similar to this.