An estimated 6.2 million Americans age 65 and older are living with Alzheimer’s dementia in 2021. Seventy-two percent are age 75 or older. One in nine people age 65 and older (11.3%) has Alzheimer’s dementia.
More than 1 in 9 people (11.3%) age 65 and older has Alzheimer’s disease. The percentage of people with Alzheimer’s dementia increases with age: 5.3% of people age 65 to 74, 13.8% of people age 75 to 84, and 34.6% of people age 85 and older have Alzheimer’s dementia.
Age is the greatest of these three risk factors. As noted in the Prevalence section, the percentage of people with Alzheimer’s dementia increases dramatically with age: 3% of people age 65-74, 17% of people age 75-84 and 32% of people age 85 or older have Alzheimer’s dementia.
In 2020, an estimated 5.8 million Americans aged 65 years or older had Alzheimer’s disease. This number is projected to nearly triple to 14 million people by 2060.
209,600 will develop dementia this year, that’s one every three minutes. 1 in 6 people over the age of 80 have dementia. 70 per cent of people in care homes have dementia or severe memory problems.
Women are disproportionately affected by Alzheimer’s disease (AD). Nearly two-thirds of the more than 5 million Americans living with Alzheimer’s are women and two-thirds of the more than 15 million Americans providing care and support for someone with Alzheimer’s disease are women.
Dementia is more common in people over the age of 65, but it can also affect younger people. Early onset of the disease can begin when people are in their 30s, 40s, or 50s. With treatment and early diagnosis, you can slow the progression of the disease and maintain mental function.
For an average 70-year-old female, the risk of developing dementia in her remaining life is 34.7 % (SE = 3.7 %), and she will live an expected 1.74 years (SE: 0.29 years) with dementia.
The prevalence of Alzheimer’s increases significantly in older age with the highest rates among those ages 90 years and older, however the greatest burden of disease exists in those ages 80–89 years. Underlying population size and the increasing rates of Alzheimer’s with age largely accounts for this situation.
Among people ages 65 and older, African Americans have the highest prevalence of Alzheimer’s disease and related dementias (13.8 percent), followed by Hispanics (12.2 percent), and non-Hispanic whites (10.3 percent), American Indian and Alaska Natives (9.1 percent), and Asian and Pacific Islanders (8.4 percent).
Age is the biggest risk factor for Alzheimer’s. It mainly affects people over 65. Above this age, a person’s risk of developing Alzheimer’s disease doubles about every five years. One in six people over 80 have dementia – many of them have Alzheimer’s disease.
Alzheimer’s disease progressively destroys brain cells over time, so during the early stages of dementia, many do recognize something is wrong, but not everyone is aware. They may know they are supposed to recognize you, but they can’t.
What is the number one food that fights dementia? Green leafy vegetables are probably the number one food that fights dementia. They have a strong, positive effect on cognitive health.
The 10 warning signs of dementia
The majority of dementia is not inherited by children and grandchildren. In rarer types of dementia there may be a strong genetic link, but these are only a tiny proportion of overall cases of dementia.