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Brain
| Question | Answer |
|---|---|
| What is the spinal cord made of? | Gray and white matter |
| What stress does to the brain? | Stress can cause an imbalance of neural circuitry subserving cognition, decision making, anxiety and mood that can increase or decrease expression of those behaviors and behavioral states |
| What protects the brain? | The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid. |
| What organs protect the brain? | The brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by a set of ring-shaped bones called vertebrae |
| What age does the brain start to decline? | It has been widely found that the volume of the brain and/or its weight declines with age at a rate of around 5% per decade after age 401 with the actual rate of decline possibly increasing with age particularly over age 70. |
| What activity kills brain cells? | Damage to the brain caused by shaking or hitting the head, or because of a stroke, can kill neurons immediately or slowly, starving them of the oxygen and nutrients they need to survive. |
| Can anxiety damage the brain? | :Pathological anxiety and chronic stress lead to structural degeneration and impaired functioning of the hippocampus and the PFC, which may account for the increased risk of developing neuropsychiatric disorders, including depression and dementia. |
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