中壢英語國際演講會 Chungli Toastmasters Club

Cancer is first of the top ten leading causes of death. It also was one of insurance favorite disease. It sounds scared and serious, but my dear member please doesn’t fear. Next, I'm going to introduce you “Origin of the Cancer”

Cancer (medical term: malignant neoplasm) is a class of diseases in which a group of cells display uncontrolled growth (division beyond the normal limits), invasion (intrusion on and destruction of adjacent tissues).

Most of cell at human body don’t continue division and growth. Only when the cell be destroy, like liver and heart cell. In the other hand like hair, nail, skin, they all need to continue division and growth to keep they working normality. Usually Cell division will balance to apoptosis. And they will be strict control to ensure body working right.

Usually Cell division is like this(), The day and the week smooth themselves out in division, Because of DNA saltation so the regular process is change, The cancer cell was born, it look like this(). After that cancer cell will continue division, and they make tissue grow blood capillary to them, so cancer cell obtain more and more nutrition to grow up. When cancer cells are big enough, the division cancer cell invasion adjacent tissue and go to other tissue by blood bus.

The sub- cancer cell in other tissue will control by mother cancer cell secrete restrain factor, they don’t division and grow up, like bear sleep at winter, this is a reason that why cancer cutting surgery is so successfully, but new cancer cell will be find in the patient body just a short time, and new cancer cell grow up faster and bigger, like plant grow up at spring.

Conclusion

It is undeniable that cancer cell is a higher evolution of individual. It is very smart, move quick, a perfect Human killer. Also is a product of Natural Selection by Darwin, but ladies and gentlemen don’t be afraid. In general, the body need many DNA salutation then will make normal cell change to cancer cell, so probability is lower.

I have a dream in the future, we can control cancer cell absolutely make cancer be a history also can achieve Immortal, because body cell can continue division, we don’t old, we don’t die.