Brain Disease Essay

2275 Words 10 Pages
What would you do if you had brain disease? The brain is the most important part of the human body. Without it, you would not be able to think, and more importantly, you would be dead. Two serious brain diseases are brain tumors and Alzheimer’s disease. A brain tumor is a massive growth of abnormal cells in the brain. There are many types of brain tumors. Some may be benign, which is noncancerous, or they may be malignant, which is cancerous (Brain Tumor). Alzheimer's disease is an unstoppable brain disease that gradually damages one's memory and thinking. Eventually, the ability to do simple tasks everyday even becomes destroyed. For most people, Alzheimer's disease show after the age of 60. This is known as late onset AD. Early onset is …show more content…
The cortex consists of four sections, called "lobes". The frontal lobe is connected to reasoning, planning, speech, movement, emotions, and problem solving. The parietal lobe is associated with balance, recognizing, and movement. The occipital lobe is associated with vision. The temporal lobe is connected to hearing, memory, and speech. The cortex is highly wrinkled, making the brain more convenient, as this increases the brain's surface area, giving it more room for neurons. The cerebrum is divided into two hemispheres- the left hemisphere, and the right hemisphere. The right hemisphere is associated with creativity, and the left one is linked with logic. A bundle of nerve fibers, known as the corpus callosum connects these "hemispheres" (Brain Structures and their Functions). The cerebellum, which is also known as the "little brain", is similar to the cerebrum, since it also has two hemispheres and a highly folded surface. This part of the brain is linked with movement and balance. The cerebellum is assumed to be older than the cerebrum "evolutionarily" (Brain Structures and Their Functions). The brain stem controls basic life functions such as blood pressure, breathing, and heartbeat. Scientists say that the brain stem is the simplest part of the brain (Brain Structures and Their Functions).

Dementia is the loss of intellectual processing such as thinking, reasoning,
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