As we age our brains shrink in volume, particularly in the frontal cortex. As our vasculature ages and our blood pressure rises the possibility of stroke and ischaemia increases and our white matter develops lesions. Memory decline also occurs with ageing and brain activation becomes more bilateral for memory tasks.
Changes in the Aging Brain
Certain parts of the brain shrink, especially those important to learning and other complex mental activities. In certain brain regions, communication between neurons (nerve cells) may not be as effective. Blood flow in the brain may decrease.
“Cognitive decline may begin after midlife, but most often occurs at higher ages (70 or higher).” (Aartsen, et al., 2002) “… relatively little decline in performance occurs until people are about 50 years old.” (Albert & Heaton, 1988).
What's happening. With age, bones tend to shrink in size and density, weakening them and making them more susceptible to fracture. You might even become a bit shorter. Muscles generally lose strength, endurance and flexibility — factors that can affect your coordination, stability and balance.
This article outlines the top causes of death for adults over the age of 65, starting with the number one cause: heart disease. Using disease prevention strategies, such as eating a healthy diet, quitting smoking, and maintaining a healthy weight, can help you avoid or reduce the impact of some these conditions.
Late adulthood encompasses a long period, from age 60 potentially to age 120– sixty years!
You have trouble following a conversation. You find it hard to make decisions, finish a task or follow instructions. You start to have trouble finding your way around places you know well. You begin to have poor judgment.
Abstract. Introduction: The five-word test (5WT) is a serial verbal memory test with semantic cuing. It is proposed to rapidly evaluate memory of aging people and has previously shown its sensitivity and its specificity in identifying patients with AD.
It has been widely found that the volume of the brain and/or its weight declines with age at a rate of around 5% per decade after age 401 with the actual rate of decline possibly increasing with age particularly over age 70.
The United States' older adult population can thus, be divided into three life-stage subgroups: the young-old (approximately 65 to 74 years old), the middle-old (ages 75 to 84 years old), and the old-old (over age 85).
What age is your mind the sharpest? The human brain attains peak processing power and memory around age 18. After studying how intelligence changes over time, scientists found that participants in their late teens had the highest performance.
Forgetfulness can arise from stress, depression, lack of sleep or thyroid problems. Other causes include side effects from certain medicines, an unhealthy diet or not having enough fluids in your body (dehydration). Taking care of these underlying causes may help resolve your memory problems.
The Mini-Cog test.
A third test, known as the Mini-Cog, takes 2 to 4 minutes to administer and involves asking patients to recall three words after drawing a picture of a clock. If a patient shows no difficulties recalling the words, it is inferred that he or she does not have dementia.
The Mini-Cog© is a fast and simple screening test to help detect dementia in its early stages. In just 3 minutes, Mini-Cog© can help doctors and other professional care providers identify possible cognitive impairment in older patients.
For most people with Alzheimer's — those who have the late-onset variety — symptoms first appear in their mid-60s or later. When the disease develops before age 65, it's considered early-onset Alzheimer's, which can begin as early as a person's 30s, although this is rare.
Many people affected by dementia are concerned that they may inherit or pass on 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.
People who use post-it notes or electronic reminders are likely to be experiencing “normal” forgetfulness. On the other hand, people who don't remember what their reminders are there for, may be displaying symptoms of dementia. Transience is when the brain forgets some memories over time.
A small fraction of people — fewer than 10 percent — feel older. The discrepancy between felt and actual age increases with the years, Dr. Terracciano said. At age 50, people may feel about five years, or 10 percent, younger, but by the time they're 70 they may feel 15 percent or even 20 percent younger.
People's health in their 70s varies a lot. Some people are completely healthy while others have multiple illnesses. No matter what your condition, there is a lot you can do to improve your health, prevent illnesses, and keep your brain sharp.