Is it possible for a human to live with half lung?

Yes, a human can live with half a lung. This may occur due to a variety of reasons, including:

* Surgical removal: In certain medical conditions, such as lung cancer or severe lung damage, a portion of the lung may need to be surgically removed. This procedure is known as a pneumonectomy or lobectomy, depending on whether an entire lung or a lobe of the lung is affected.

* Atelectasis: This is a condition where a portion of the lung collapses and does not function properly. This could be caused by blockages in the airways or compression from fluid or tumors, reducing functional lung capacity.

* Congenital conditions: Rarely, individuals may be born with only one functional lung or a smaller lung than normal.

In cases where a person has half a lung, the remaining healthy lung can compensate and adapt to maintain sufficient oxygen exchange and respiratory function. Over time, the remaining lung may enlarge slightly, increasing its capacity to meet the body's needs.

However, individuals with half a lung may experience certain limitations, especially during strenuous physical activities, requiring increased respiratory effort. Regular medical follow-up and lifestyle adjustments, such as avoiding smoking and ensuring adequate respiratory health, are essential for managing the condition.