Question

why people are not able to survive in cold region​

Answer 1

Answer:

The body diverts blood flow from the surface as the temperature drops so the most important parts stay warm the longest. This allows the body's core to be protected for longer. If blood flow is gone from the extremities for too long, the cells start to die. Depending on the severity of the damage, new cells will either replace the old or that part of the body is lost to frost bite.

Explanation:

Answer 2

Answer:

The body diverts blood flow from the surface as the temperature drops so the most important parts stay warm the longest. This allows the body's core to be protected for longer. If blood flow is gone from the extremities for too long, the cells start to die. Depending on the severity of the damage, new cells will either replace the old or that part of the body is lost to frost bite.