Most people who get lung cancer smoke or have smoked cigarettes.
Exposure to second-hand smoke – even people who do not smoke can develop lung cancer from cigarette smoke.
Environmental factors – a person’s risk of developing lung cancer is increased by exposure in the home or in the workplace to harmful substances such as asbestos.
symptom of lung cancer.
Symptoms are not always evident during the early stages of the disease.
Symptoms are varied and can include, for example: a persistent cough, pain, coughing up blood, shortness of breath
or hoarseness. [click to continue…]
Symptoms of Cancer
Cancer manifests itself in a very variable. It usually develops over many years before symptoms appear. The following 
symptoms may be signs of cancer. In their presence, consult a doctor.
* A palpable mass, especially if it increases the volume of a nodule in one breast under the skin, a lymph node, etc..
* A mole or skin spot that changes in appearance, color or size, or bleeding.
* A bleeding: blood in the sputum, urine or stool. For women, vaginal blood loss during the cycle or after menopause.
* Symptoms: Persistent cough and unexplained hoarseness for more than four weeks, difficulty swallowing, nausea and vomiting, a sore that does not heal in three weeks, diarrhea or constipation for six weeks or more.
* A withdrawal or discharge from the nipple.
* Headaches and recurrent violence.
* Extreme fatigue.
* A rapid weight loss, unexplained.
People at risk
* Some families are more frequently affected by cancer. There would, in these families, genetic predisposition to cancer, passed from one generation to another. This may be the case for breast, ovarian and colon cancer. Even in people whose genetic background predisposes to cancer, the risk of being a fair and depends largely on the lifestyle and environment.
* People who have had cancer. [click to continue…]
Cancer: what is it?
Cancer is often perceived as an incurable disease, without issue, though, thanks to early detection and treatment, many patients recover.
Tissues and organs are composed of millions of cells. In people with cancer, the body is attacked by cells that multiply in an exaggerated way and invade surrounding tissues. Sometimes, some of them can break off and migrate to other parts of the body Various factors, such as radiation, carcinogens in food, air and cigarette smoke, or genetic predisposition may affect the “mechanics” of these normal cells and prevent them from functioning smoothly. Sick, they will begin to proliferate without control. Normally, the immune system eliminates or prevents them from [click to continue…]
Most people who get lung cancer smoke or have smoked cigarettes.