Question

How Long our human body can survive without oxygen ?

also Give notes on the need of Oxygen ​

Answer 1

Answer:

Time is very important when an unconscious person is not breathing. Permanent brain damage begins after only 4 minutes without oxygen, and death can occur as soon as 4 to 6 minutes later.

Explanation:

Hope it's helpful ☺️✌✨

Answer 2

Explanation:

Time is very important when an unconscious person is not breathing. Permanent brain damage begins after only 4 minutes without oxygen, and death can occur as soon as 4 to 6 minutes later.

Oxygen, a gas found in the air we breathe, is necessary for human life. Some people with breathing disorders can’t get enough oxygen naturally. They may need supplemental oxygen, or oxygen therapy. People who receive oxygen therapy often see improved energy levels and sleep, and better quality of life.