What are the signs of frostbite and first aid rules?

1) With frostbite, the skin turns pale, then loses sensitivity, then it becomes dead.
2) In case of hypothermia, the patient should be brought into a warm room, take off cold clothes, wrap up, give a copious warm drink.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.