You may be more likely to develop Alzheimer’s if your mother had the disease at any time in her life, a study suggests. But those whose father’s suffered from early-onset Alzheimer’s – Alzheimer’s before the age of 65 years – may also be at risk. You may be more likely to develop Alzheimer’s if your mother had the disease at any time in her life, a study suggests. But those whose father’s suffered from early-onset Alzheimer’s – Alzheimer’s before the age of 65 years – may also be at risk.