This lesson looks into the differentiation between what is considered normal, or primary, aging and what is considered abnormal, or secondary, aging. In addition, we will look at how an often misunderstood disease fits into this.
Aging & Disease
When it comes to complicated things, sometimes people think they know what they’re talking about when they really don’t.
What I mean is that in our everyday world, we don’t need to differentiate between Old-Timers’ and Alzheimer’s. But for those who do need to know the difference, and for our general knowledge, it is better to understand that there is a difference between aging and disease.I want to use Alzheimer’s here as the main point. So a quick bit of information about Alzheimer’s:
- It is a degenerative mental condition
- It is caused by a buildup of proteins and degeneration in the brain
- It is not a normal part of aging
Pretty simple up to this point, right? To make things complicated, we also have changes that occur as we age. There is a slow decline in processing speed and difficulty with forming new memories that is relatively common in older people. With our understanding of Alzheimer’s versus getting old, let’s look at different types of aging.
Primary aging is natural and progressive maturation, which is often part of the process of getting older.
One way to think about primary aging is that it is expected. As we age, we expect that our bone density will decrease, and our bones will become more brittle. Our muscles will lose strength and be replaced by a fibrous tissue. And certain cognitive changes will occur that aren’t exactly thrilling. Even our hair becomes gray.With primary aging, we kind of know what is coming.
With enough research, we can predict what is going to happen to a person. Looking at our main example, primary aging does not include Alzheimer’s Disease. More specifically, when it comes to primary aging, we see a slow decline in what is called fluid intelligence, or a person’s ability to think laterally and understand new and novel ideas.
This is why older people have so much trouble with ever-changing technology. Their brains are preprogrammed to decline, making it difficult to deal with new-fangled phone systems, and unfamiliar touch screens.But where does Alzheimer’s fit into this? To examine that, we have to look at another aging process.
Secondary aging is environmental effects and disease. Here, the body, the valiant, and heroic human, succumbs to illness and the environment.
Alzheimer’s would be part of secondary aging, because it is not a natural part of growing older. In fact, here is a whole list of things that we include under secondary aging:
- Chronic diseases
- Poor nutrition
- Lack of exercise
And that’s just the broad terms. Each one of these secondary forms of aging has dozens, if not hundreds, of sub-fields to differentiate them. For instance, how many cancers can you think of? There are dozens of ways smoking is bad for you, including your lungs, heart, and skin. Poor nutrition also creates a series of problems that not only causes problems on its own, but compounds all of the other forms of aging – secondary and primary.To some degree, secondary aging can be reduced or mitigated by preventative health care, which is steps taken to slow down or reduce the impact of secondary aging. Here is where you stop smoking.
Or you get that funny lump checked out. Or you take all of your antibiotics when you’re told to. Or in my case, actually go to the doctor when your arm swells up and starts looking like it’s rotting; dang cat scratch disease!Looking back at our original example, we discussed how there are age-related declines to cognition.
However, Alzheimer’s disease would be considered a secondary form of aging. Specifically, it would fall under a chronic disease, something that is primarily genetic, but also subject to a great deal of environmental influences. For instance, effects of Alzheimer’s can be reduced by proper exercise and diet.
That being said, if you are destined to get it (meaning that your genes are programmed to cause it), then you will get it regardless of what you do. It is just the severity of it that you control. Think of it like a bomb dropping. You can’t stop it, but you can sure as heck duck for cover.
Primary aging is natural and progressive maturation. It is what we expect to come with aging.
One common example is the reduction in fluid intelligence, or a person’s ability to think laterally and understand new and novel ideas.In addition to the normal effects of aging, there is also secondary aging, which is environmental effects and disease. This is due to what is going on around us and could be considered atypical as well as unique to the individual. Not everyone smokes, but everyone will see age-related declines.
One aspect of secondary aging is the use of preventative health care, which is steps taken to slow down or reduce the impact of secondary aging.
After watching this lesson, you should be able to compare primary and secondary aging and how preventative health care can reduce the effects of aging.