Everyone's attention was immediately attracted, and many people felt that what Mr. Wang said was very reasonable.

"Aging is caused by a variety of reasons, which can be roughly divided into two categories, physiological aging and pathological aging, physiological aging is also relatively easy to understand, that is, it refers to the process of gradual degradation of various parts of the human body in the later stage, is a common phenomenon in all cells, tissues and organs in the body, and is an endogenous change caused by natural trends";

"Pathological aging refers to the senile changes caused by various large and small diseases, so maintaining good health is a great secret of longevity."

"We also know that if you are healthy, you can live a long time, but who can guarantee that your body will always be healthy?"

"He's right, it's not up to anyone, I'm not very old, and I'm already having problems here and there."

"Teacher, do you have anything you can do?"

Mr. Wang brought the topic here, and everyone couldn't help but discuss it again, I'm afraid that no one doesn't want to be healthy and live a long life.

Seeing that everything was developing according to his own thoughts, the surname Wang felt a little proud.

Teacher Wang stretched out his hand again, and everyone was very obedient, and the scene suddenly became quiet again.

"Next, let's talk about the specific causes of aging, the first reason, I think everyone has heard, immunity declines, as we age, the immune system will automatically decline, maybe you don't know very well what the immune system does, in layman's terms, this immune system is like a self-defense army in our body, every moment of every day, there are all kinds of bacteria, germs, fungi, and parasites in the outside world to invade our body";

"This army is the most important line of defense against these substances, they will resist, devour and destroy these incoming substances, so that our bodies are always under the cordon, to maintain a balance, just like we usually have a little cold, we don't need to drink medicine and injections, after a while it will heal automatically, and like we accidentally cut, it will heal slowly after a while, these are the immune system to protect our health, they are working";

"It can be seen that once our immune system is damaged, what terrible changes will be encountered, which is also like a war between the enemy and us, our side loses troops and loses troops, while the other side's attacks are continuous, and the final result is self-evident."

"Then we must have been defeated, can we beat ten people, a hundred people alone?"

"The next thing should be that I got sick and was hospitalized with medicine"

"We can't beat people on our own, so we have to use foreign drugs and other things to help us."

Mr. Wang has been smiling: "Everyone is very smart, and the analogy is also very vivid, so whenever we are sick, then the immune system must be damaged, but everyone has heard of a sentence, it is a three-point poison, some drugs will cause a certain degree of damage to our body while treating our injuries and diseases";

"What's more, there are many kinds of human diseases, and there are countless of them, but the drugs that can be effectively treated are not very complete, and there are some major diseases, even if there are medicines for sale, but do you have the money to buy them?"

"Let's talk about the second cause of aging, free radical invasion, which is also a very important reason for aging, this is a relatively new concept, here we will not go into detail, we human beings will produce free radicals when absorbing oxygen, consuming calories and decomposing glucose in the body all the time, this free radical production is excessive, or when our metabolism is too slow, it will attack life substances and organelles at all levels, causing damage to all aspects of them, accelerating the aging of the body and inducing various diseases"

"It can also lead to a decrease in immunity, maybe some people have a little luck in their hearts, saying that even if I am sick, it is not a big deal, it is a big deal every time I take medicine, here I want to reiterate, take too many medicines, not to mention the harm to the body caused by their toxicity, long-term medicine, our body will also produce antibodies, just like the first time we have a cold, buy a box of two or three cold medicines, but when the fourth and fifth colds, we will feel that the effect of this cheap cold medicine is not so obvious”；

"But everyone hopes that the cold will be cured sooner, and when we buy medicine again, we will definitely buy more expensive medicines, and the cycle continues, and in the end, when we catch a cold again, we buy two or three cold medicines, or even more expensive, and these will also lead to decreased immunity, easy to get sick, and take medicine again, forming a vicious circle";

"What Mr. Wang said makes sense, no wonder I am prone to colds, it seems that my immunity is not as good as others, alas"

"When I buy medicine for colds now, I buy the most expensive brand of cold medicine, and it may not be cured in the end."

"I've heard people say that regular exercise can improve immunity, and it seems that yes, if your immunity improves, you won't get sick as much as usual."

Seeing that Teacher Wang stopped to drink water, everyone began to mumble again.

After listening to so much, Tong Chen also felt that he was in a fog at this time, although he also agreed with some words, but there were many terms that he didn't understand at all, and he just felt that it was so powerful.

However, Tong Chen also figured out their purpose, if everyone knows everything in their chests, then how can they be easily fooled, that is, they specifically say some words that everyone can't understand, many people will pretend to understand if they don't understand, they will only feel that it makes sense, and there should be no problem.

"It's a bit off-topic, let's still talk about this free radical, and you may not be able to figure out too many professional terms, so I'll still use an analogy, in our ordinary life, everyone has eaten apples, when we peel apples, it won't take long for the white flesh to begin to turn yellow, which is the result of excessive oxidation";

"Too many free radicals in our body will also cause oxidation, and then pigment appears, pigmentation precipitation, easy to get sick, etc., which can be described as a lot of harm."

Then there was the exchange between the people.

It seems that it is really not easy to deceive people, watching this so-called lecturer come with his mouth open, talking endlessly, Tong Chen knows very well that he must have done a lot of homework in private, and he has also used a lot of heart.

"There are many causes of aging, such as chronic inflammation, the most distinctive feature of all chronic diseases is that it is relatively slow, which requires a process of reaction, when chronic inflammation occurs, all aspects of the body will be swallowed by toxic chemicals, such as our common elderly stroke, myocardial infarction, cancer, arthritis, diabetes, hormone imbalance, Alzheimer's disease, etc., which are inseparable from long-term inflammation";

The so-called inflammatory reaction is when a foreign body injures the body, the surrounding tissues gradually turn red and produce inflammation, and the symptoms of inflammation are redness, pain and fever."