what is the lfe expectancy of a person with tay-sachs disease

http://www.ninds.nih.gov/disorders/taysachs/taysachs.htm#What_is_the_prognosis

This disease starts in infancy and usually results in death by the age of 4 years.

The life expectancy of a person with Tay-Sachs disease can vary depending on several factors. Tay-Sachs disease is a rare inherited genetic disorder that affects the nervous system. It is caused by a lack of an enzyme called hexosaminidase A, which leads to the accumulation of certain fats in the brain and spinal cord.

Unfortunately, Tay-Sachs disease is a progressive and degenerative condition with no known cure. The prognosis for individuals with Tay-Sachs disease is generally poor, and most affected individuals do not survive beyond early childhood.

To obtain more specific information about life expectancy in individuals with Tay-Sachs disease, it is best to consult with a medical professional, such as a genetic counselor or a geneticist, who can provide more accurate and personalized information based on the individual's specific situation. They can also discuss available treatments and support options for managing the condition.