![]() ![]() ![]() interested to learn more, of course you are because today is our last episode of an Essential Guide to your body and brain. These questions are key to understanding just how the body grows and ages and how its greatest enemies such as cancer can be defeated. And solving these mysteries is a major goal of biologists today. The processes that control cell birth, death and specialization are still not well understood. In yet other tissues such as those of the heart, mature cells cannot divide and damage to the organ is repaired with scar tissue. In some tissues such as those of the skin this cycle runs almost continuously. The adult body contains trillions of cells, each with its own life cycle all are born from the Division of pre existing cells, most will grow, divide and eventually die to be replaced by new cells. Almost immediately, hundreds of other kinds of cells arise, each suited to a particular task, and yet all made up of the same basic parts, dividing, specializing, proliferating and dying, the cells follow instructions encoded into their DNA to become the magnificently coordinated colony, that is the human body. Audio Episode Episode TranscriptĮvery human body starts with a meeting of two cells, a sperm cell and an egg cell and develops from that union. This is the last episode of our series, An Essential Guide to Your Body and Brain and in it, we will talk about the body’s life cycle and we will finish the series talking about the aging brain. ![]()
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