This is the worry of children who's parents had AD. To make this clear and specific doctors and researchers have categorized Alzheimer's into three types :
* EARLY-ONSET DEMENTIA : Less than 10 percent of all AD patients have this type. These are individuals diagnosed with the disease before age 65. Adults with Down Syndrome are at risk and often the symptoms appear in their mid to late 40s or early 50s.
* LATE-ONSET DEMENTIA : This is the most common form of AD. It occurs after age 65. It strikes almost half of all people over the age of 85. This might or might not be hereditary. Late-onset dementia is also called SPORADIC Alzheimer's Disease.
* FAMILIAL ALZHEIMER'S DISEASE : This is entirely inherited. Families of at least 2 generations can be documented to have AD. But this is extremely rare. It is less than 1 percent of all cases of AD.
Since the most common AD is late-onset dementia it doesn't mean that if one member of the family has AD you will have the disease too. Just keep your brain cells healthy and optimized thru proper nutritions and exercises. Keep your brain stimulated.