Why does the left lung have two lobes and the right lung have three lobes?

Our human body structure is very complex, and the lungs are the main respiratory organs. The left and right lungs have different shapes. The left lung is narrower and longer because the heart is biased to the left, while the left lung is wider. The left and right lungs are cone-shaped and are divided into five lobes, with two lobes in the left lung and three lobes in the right lung. Many friends don’t know why it is divided like this? Let’s take a closer look at the reasons below!

The specific reason why the left lung has two lobes and the right lung has three lobes

The specific reasons are:

(1) When a person sleeps on his left side, the heart is in the lower part of the body. In order not to increase the burden on the heart, the lungs are required to inhale more oxygen.

(2) When a person sleeps on the right side, the heart is at the top of the body and blood flows from top to bottom. This can reduce the burden on the heart and does not require the lungs to inhale more oxygen. In addition, it can also reduce the amount of oxygen inhaled by the lungs.

The specific situation of the left lung having two lobes and the right lung having three lobes

The specific situation is:

(1) When a person lies on the left side to sleep, the left lung is at the bottom and the right lung is at the top. The left lung is squeezed and only some of the alveoli in the left lung expand. The right lung relaxes and all the alveoli in the right lung expand. In fact, the left lung is resting while the right lung is working.

(2) When a person lies on the right side to sleep, the right lung is at the bottom and the left lung is at the top. The right lung is squeezed and only some of the alveoli in the right lung expand. The left lung relaxes and all the alveoli in the left lung expand. In fact, the right lung is resting while the left lung is working.

Effective measures to prevent human aging

In order for the human body to breathe in more oxygen when sleeping on the left side than when sleeping on the right side, the right lung needs to have much more alveoli than the left lung, thus forming the right lung with three lobes and the left lung with two lobes. This is the result of human beings' long-term survival and evolution, and it is also a powerful measure to prevent human aging.

How can the elderly sleep better?

The best sleeping position for the elderly is lying on their back, followed by lying on their left side, and the worst sleeping position is lying on their right side. Later I will introduce the advantages and disadvantages of the three sleeping positions. Why is sleeping on the right side the worst sleeping position for the elderly? This is because sleeping on the right side increases the risk of stroke in the elderly.

After reading the above introduction, I believe everyone knows why the left lung has two lobes and the right lung has three lobes. The lungs are one of the five internal organs of the human body and are also the most delicate organ, so you must protect your lungs. At the same time, smoke less and eat more lung-clearing foods, such as carrots, fungus and soy milk, which are very good for the lungs. Don't eat too spicy, too greasy food, and eat more fruits to protect your lungs, so that your body will be healthier.