New York's Columbia University has found out that education might be a negative factor for patients with Alzheimer's.
The researchers monitored 312 people aged 65 and older who had been diagnosed with the disease for five years.
The condition of all patients declined every year. But the medical team found out that each extra year of education added 0.3% deterioration per year.
Until that study education was believed to possibly ward off Alzheimers.
But once the damage reaches a critical level, education stimulates a swifter decline, the NY scientists believe.