Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship--except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of their country of origin.
The brain is made up of over 100 billion nerve cells with each brain cell connected to around 10,000 other cells, which equals around 1000 trillion connections in your brain. Your brain is actually very soft, jelly-like, and not grey but a deep red in color. The brain controls both involuntary, or lower, actions, such as heart rate, respiration, and digestion. Complex, or higher, mental activity, such as thought, reason, and abstraction, is consciously controlled.
There are many different types of brain tumors including meningiomas, gliomas, and others which can become cancerous, as is the case with neuroblastoma as well as other brain cancers. Brain Tumor Awareness is represented by the color gray. Choose below from our in stock selection of rubber wristbands, ribbon magnets, lapel pins and more or place a custom order to support Brain Tumor Awareness for your event or fundraiser.