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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.