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Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Gastrointestinal Bleeding

Symptoms & Signs

What are the signs and symptoms of the condition?

Mild cases of bleeding may cause no symptoms at all. When symptoms are present, they are related to the cause of blood loss, as well as the amount and location of the blood loss. Common symptoms include:

noticeable blood loss, such as blood in the stools or vomiting blood. Stools may also become black and sticky, a condition known as melena.

symptoms of anemia, or low red blood cell counts, from too much blood loss. These symptoms may include fatigue, weakness, shortness of breath, dizziness, or pale skin.

Other symptoms are often related to the cause. For example:

peptic ulcers can cause abdominal distress

colon cancer can cause weight loss

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