The average age for dementia onset is around 65 years or older, with risk increasing significantly with age, but it can occur younger (before 65) as early-onset dementia, sometimes in one's 30s, especially with genetic factors. While most cases happen later in life, it's not a normal part of aging, and conditions like frontotemporal dementia often present in middle age (45-65).
These include:
The "2-finger test" for dementia involves an examiner showing a hand gesture (like interlocking index and middle fingers) and asking the patient to copy it, testing motor skills, visual memory, and coordination, as difficulties can signal early cognitive decline, but it's a screening tool, not a definitive diagnosis, prompting further medical evaluation. Other related tests include finger-tapping and finger-to-nose, looking for hesitation or misjudgment in movement.
The number one cause of dementia is Alzheimer's disease, responsible for 60-80% of cases, characterized by brain plaques (beta-amyloid protein) and tangles (tau protein) that damage nerve cells, leading to progressive memory and cognitive decline, though vascular dementia from blood vessel damage is also a significant factor.
Although the early signs vary, common early symptoms of dementia include: memory problems, particularly remembering recent events. increasing confusion. reduced concentration.
The 5-word memory test is a cognitive screening tool. This approach is simple—a person is told 5 words in a specific order, and a few minutes later, they're asked to recall them in the same order. It's often used by healthcare providers to test memory and short-term recall.
Age. The biggest risk factor for dementia is ageing. This means as a person gets older, their risk of developing dementia increases a lot.
Whereas a separate study of 13,984 adults over age 65 revealed that those who had social support such as friends, family and community groups were 46% less likely to develop dementia than those more isolated.
But Romano says it's a leap to say that skipping breakfast actually causes dementia. “Alzheimer's disease is a complex brain illness,” he says. “Although the study found these correlations between skipping breakfast and dementia, skipping breakfast might be an indicator of other health habits or life circumstances.”
Common changes in behaviour
You Miss Out on Sleep
You do a few things you know you shouldn't -- we all do. But some of those bad habits can take a toll on your brain. For example, lack of sleep may be a cause of dementia, including Alzheimer's disease. It's best to have regular sleeping hours.
The SAGE test is a short, self-administered evaluation that screens for early signs of memory or thinking problems like dementia. You take it on your own, at home or at your provider's office. It's simple and there's no studying needed. It can catch issues early.
The 10 warning signs of dementia include memory loss, difficulty with familiar tasks, confusion about time/place, trouble with language, poor judgment, misplacing things, personality changes, loss of initiative, and problems with visual/spatial skills, requiring professional assessment to distinguish from normal aging.
In stage 1 of the Global Deterioration Scale, or GDS, the person isn't experiencing any symptoms. There's no cognitive decline, and although they may have occasional memory lapses, forgetfulness has no impact on their function.
Our results confirm that vitamin D deficiency is associated with a substantially increased risk of all-cause dementia and Alzheimer disease.
There is no known cure, but early diagnosis and treatment can lead to better quality of life. Stay healthy with a good diet and regular exercise. Stay away from alcohol and other substances that may affect memory, thinking, and behavior.
The cause of roughly 70% of all dementia cases is Alzheimer's disease, a progressive brain disorder characterized by the buildup of amyloid plaques and tau tangles, leading to memory loss and impaired thinking that interferes with daily life, making it the most common form of dementia.
Remember the 90-second rule? Give patient's at least 90 seconds to process what you are asking and allow them to react. If you keep asking your patients to complete a task without letting them process it, your request often gets lost in translation.
Studies have shown a correlation between diets high in excess saturated fats, simple sugars, and ultra-processed foods and an increased risk of developing dementia. Examples of foods to avoid include processed meats, packaged snacks, sugary beverages and desserts, and excess alcohol.
other long-term health problems – dementia tends to progress more quickly if the person is living with other conditions, such as heart disease, diabetes or high blood pressure, particularly if these are not well-managed.
99 out of 100 cases of dementia are not directly caused by genes we inherit from our parents. In most cases the likelihood of us developing dementia, is made up of a complex mixture of factors. The DNA code in our genes naturally varies from person to person. Often this variation has no effect on us.
Our infographic showing 14 modifiable risk factors for dementia, which includes:
Try to limit or avoid drinking alcohol and smoking.
Over time, excessive drinking can lead to high blood pressure or brain injuries, both of which increase the risk of dementia. Current smoking also increases the risk of developing dementia, including Alzheimer's disease. If you drink alcohol, do so in moderation.
The following procedures also may be used to diagnose dementia: Cognitive and neurological tests. Used to evaluate thinking and physical functioning, these tests include assessments of memory, problem solving, language skills, and math skills, as well as balance, sensory response, and reflexes. Brain scans.
They concluded that of various types of B vitamins, riboflavin had the greatest overall impact on the likelihood of developing dementia, cutting risk by almost half. Diets rich in folate and vitamin B6 reduced risk by about 20 percent.