Polyps are often non-cancerous growths but some can develop into cancer. The two most common types of polyps found in the colon and rectum include: 1  Hyperplastic and inflammatory polyps.2  Usually these polyps do not carry a risk of developing into cancer. 3  However, large hyperplastic polyps, especially on the right side of the colon, are of concern and should be completely removed.olyps are often non-cancerous growths but some can develop into cancer. The two most common types of polyps found in the colon and rectum include: 1  Hyperplastic and inflammatory polyps.
Here are the facts: Most estimates say we have about 100 billion brain cells (neurons), and about ten times that many, or one trillion, support cells (glia) that help the neurons. We'll just concentrate on the neurons themselves. The brain weighs about 3 pounds, and after age 20, you lose about a gram of brain mass per year.
You probably expect that a large number of neurons are required for such a complex process, but just how many neurons are there in the human brain? How Many Neurons are in the Human Brain? According to many estimates, the human brain contains around 100 billion neurons (give or take a few billion). This estimate has often been reported for many years in neuroscience and psychology textbooks and for many years was simply accepted as a relatively close approximation.