Cancer is a group of many related diseases that begin in cells, the body's basic building blocks. The body is made up of many types of cells. Normally cells grow and divide to produce more cells as they are needed to keep the body healthy. Sometimes, this orderly process goes wrong. ...
It can cause lung cancer(肺癌) an d many other diseases.But how serious is the problem of second-han d smoke? The World Health Organization(WHO) di d a study of 194 countries. They foun d that second-han d smoke causes about 600,000 deaths every year. That is about1% of the worl...
Chemical agents are the commonest occupational hazard that can result in OD. This entry describes the toxicity of chemicals, their route of exposure, and different health effects caused by chemical agents, with a focus on ODs and cancer caused by chemicals. Principles of preventive measures in ...
Diseases are abnormal conditions that have a specific set of signs and symptoms. Diseases can have an external cause, such as an infection, or an internal cause, such as autoimmune diseases. Featured Location matters: defining the architecture of the bronchial wall in health and asthma ...
Hypothyroidism, also known as underactive thyroid, is the opposite of Graves' disease. It occurs when the thyroid gland does not produce enough hormones. This can cause body functions to slow down or stop completely. Thyroid cancer Cancer is another disease that can affect the thyroid. A 2017 ...
Cancer is among the top killer diseases in our society today and scientists have found out that stress(紧张) helps to bring it on. It is worthwhile to consider, therefore, what are the causes of stress in our life, and whether we can do anything about them. Are we underemployed, or ...
A.show that people are taking actions to stop smoking B.explain to us some knowledge of cigarette-making C.remind us of the great harm of smoking D.call on people to support smoking." /> Smoking can cause cancer,heart problems and other diseases.Although almost everybody knows smoking...
that binds specifically to a BCR. The process of clonal expansion of B cells, however, requires 3 to 5 days, which could grant the pathogen enough time to multiply and cause damage.84Compared with adaptive immunity, innate immunity can be activated quickly after pathogen invasion. It is the ...
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Track 6: Rare Diseases in Cancer and Aging Rare cancers tend to be caused by simple genetic mutations, and common cancers tend to be caused by a complex set of genetic and epigenetic aberrations that continually increase in number as the tumor develops. All cancers that can be cured when in...