Cancer Starts in Cells
There are more than 100 types of cancer and each one is different. Most cancers affect skin, while others attack white blood cells and even the immune system. These diseases are widespread and affect nearly every part of the body, and are the most common cause of death in the United States. The body is composed of trillions of cells, which are normally destroyed and replaced with new ones. The process of cell growth and replacement occurs in a controlled manner, and cancer occurs when certain changes occur in the genes that control cell division. As cells grow and divide, they are not able to die properly, and they begin to crowd out normal cells and make the body work harder to fight them.
Cancer is a disease of cells, which are the building blocks of the human body. Healthy cells grow and die, but cancer cells do not die when they should. Over time, these cells group together and form a tumor. This growth can destroy healthy tissues nearby or break off and spread to other areas of the body. In many cases, cancer cells are accompanied by symptoms, including pain and fever. Symptoms of cancer can vary from person to person, but most people will have at least one type of it at some point in their lives.
Cancer starts in cells. Normal cells grow and die in the body. As they age, they die. As cancer grows, it smothers those cells and eventually kills them. Despite this, cancers can spread throughout the body. Some cancers spread to distant areas, including the bones, lungs, and brain. When cancer spreads outside of the body, the disease is referred to as metastatic cancer. The full text transcript of this article is available online at BioDigital Systems.
The origin of cancer is unclear, but it is known that cancers start in cells. Cells are the building blocks of the human body. The body replaces old cells with new ones. When the body cannot replace them, it may create extra cells and form a tumor. These tumors are usually malignant and can invade adjacent tissues. Once they break away, they may spread to other parts of the body. When they are large, cancers are difficult to treat.
In the body, cancer begins when cells begin to divide abnormally. In a healthy body, cells grow and die normally. In a healthy body, cells die when they are no longer needed. However, when cancer cells multiply uncontrollably, they form a tumor and become cancerous. The growth of these tumors affects the surrounding normal tissue and will cause a great deal of damage. It is impossible to cure cancer without treating the symptoms.
The majority of cancers are non-hereditary. Hereditary cancers are those caused by a genetic defect that is passed down from generation to generation. The vast majority of people are not carriers of genetic mutations with a large effect on their risk of cancer, and there are only a handful of them in the general population. For example, the BRCA2 gene, which increases the risk of breast and ovarian carcinoma by 75%, is present in less than 3% of colorectal cancer patients.
There are more than 100 types of cancer and each one is different. Most cancers affect skin, while others attack white blood cells and even the immune system. These diseases are widespread and affect nearly every part of the body, and are the most common cause of death in the United States. The body is composed of trillions of cells, which are normally destroyed and replaced with new ones. The process of cell growth and replacement occurs in a controlled manner, and cancer occurs when certain changes occur in the genes that control cell division. As cells grow and divide, they are not able to die properly, and they begin to crowd out normal cells and make the body work harder to fight them. Cancer is a disease of cells, which are the building blocks of the human body. Healthy cells grow and die, but cancer cells do not die when they should. Over time, these cells group together and form a tumor. This growth can destroy healthy tissues nearby or break off and spread to other areas of the body. In many cases, cancer cells are accompanied by symptoms, including pain and fever. Symptoms of cancer can vary from person to person, but most people will have at least one type of it at some point in their lives. Cancer starts in cells. Normal cells grow and die in the body. As they age, they die. As cancer grows, it smothers those cells and eventually kills them. Despite this, cancers can spread throughout the body. Some cancers spread to distant areas, including the bones, lungs, and brain. When cancer spreads outside of the body, the disease is referred to as metastatic cancer. The full text transcript of this article is available online at BioDigital Systems. The origin of cancer is unclear, but it is known that cancers start in cells. Cells are the building blocks of the human body. The body replaces old cells with new ones. When the body cannot replace them, it may create extra cells and form a tumor. These tumors are usually malignant and can invade adjacent tissues. Once they break away, they may spread to other parts of the body. When they are large, cancers are difficult to treat. In the body, cancer begins when cells begin to divide abnormally. In a healthy body, cells grow and die normally. In a healthy body, cells die when they are no longer needed. However, when cancer cells multiply uncontrollably, they form a tumor and become cancerous. The growth of these tumors affects the surrounding normal tissue and will cause a great deal of damage. It is impossible to cure cancer without treating the symptoms. The majority of cancers are non-hereditary. Hereditary cancers are those caused by a genetic defect that is passed down from generation to generation. The vast majority of people are not carriers of genetic mutations with a large effect on their risk of cancer, and there are only a handful of them in the general population. For example, the BRCA2 gene, which increases the risk of breast and ovarian carcinoma by 75%, is present in less than 3% of colorectal cancer patients.