Lung cancer: Hormonal (endocrine) syndromes
Certain types of lung cancers are capable of producing hormones that act on organs within the brain (the pituitary and hypothalamus) or upon other organs such as the kidneys, adrenal glands, thyroid, ovaries, or testes.
• Syndrome of inappropriate antidiuretic hormone (SIADH), resulting in low levels of sodium in the blood, often is associated with small cell lung cancer and sometimes bronchial carcinoid tumors.
Symptoms include: [click to continue…]
Symptoms of colorectal cancer 
Colorectal cancer is usually unnoticed in its early stages of growth. The following symptoms may indicate cancer colorectal.
* Changes in fecal habits alternating between constipation and diarrhea.
* Blood in the stool.
* A permanent discomfort in the stomach: cramps, gas or pain.
* The feeling that the bowel does not empty completely or having constant desire to defecate.
* A large fatigue.
* An unexplained weight loss.
Note. The presence of blood in the stool may be another explanation, such as hemorrhoids or anal fissure. In addition, some foods can color the stool. This is the case of beets and red licorice.
People at risk
* Age. The disease mainly affects people over 50 years (90% of cases). [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…]