The Sikness of the Human Brain

The sikness of the Human Brain

Epilepsy  is a group of long-term neurological disorders characterized by epileptic seizures. These seizures are episodes that can vary from brief and nearly undetectable to long periods of vigorous shaking. In epilepsy, seizures tend to recur, and have no immediate underlying cause while seizures that occur due to a specific cause are not deemed to represent epilepsy.

Parkinson's disease is a degenerative disorder of the central nervous system. The motor symptoms of Parkinson's disease result from the death of dopamine-generating cells in the substantia nigra, a region of themidbrain; the cause of this cell death is unknown. Early in the course of the disease, the most obvious symptoms are movement-related; these include shaking, rigidity,slowness of movement and difficulty with walking and gait. Later, thinking and behavioral problems may arise, with dementia commonly occurring in the advanced stages of the disease, whereas depression is the most common psychiatric symptom. Other symptoms include sensory, sleep and emotional problems. Parkinson's disease is more common in older people, with most cases occurring after the age of 50.

Frontotemporal dementia (FTD) is a neurodegenerative disease characterized by progressive neuronal loss predominantly involving the frontal and/or temporal lobes. The disorder was first described by Arnold Pick in 1892 and was originally called Pick's disease. Second only to Alzheimer's disease (AD) in prevalence, FTD accounts for 20% of young onset dementia cases.^[1] Symptoms typically manifest in late adulthood, more commonly between 55 and 65 years, approximately equally affecting men and women.^[1] Common symptoms include significant changes in social and personal behavior, apathy, blunting of emotions, and deficits in both expressive and receptive language. Currently, there is no cure for FTD, but there are treatments that help alleviate symptoms

.Alzheimer's disease (AD), also known in medical literature as Alzheimer disease, is the most common form of dementia. There is no cure for the disease, whichworsens as it progresses, and eventually leads to death. It was first described by German psychiatrist and neuropathologist Alois Alzheimer in 1906 and was named after him.^[1] Most often, AD is diagnosed in people over 65 years of age,^[2] although the less-prevalent early-onset Alzheimer's can occur much earlier. In 2006, there were26.6 million people worldwide with AD. Alzheimer's is predicted to affect 1 in 85 people globally by 2050.^[3]