Dr Art Hister – Your jaw is like the rest of you

Everyone over the age of 4 (perhaps even sooner in some of us) knows that all our tissues, every part of us, either dries out or falls or shrinks with age.

And I mean every part, without exception, which is why I was not at all surprised to learn that new research from Sweden has determined that even your jaw shrinks with age, and it shrinks in all plains, so that both the length and the width of your jaw goes progressively downwards after the age of 40 .

Yes, it only shrinks by a few millimetres, say these researchers, but that’s also enough shrinkage, they add, to lead to problems with your teeth because there’s just less room in your mouth for all those teeth you started out with to co-habit peacefully, which is yet another reason for many aging people to experience increasing problems with their bite.

And yes, according to these researchers, even people who’ve had their wisdom teeth extracted can experience teeth “crowding” as the jaw shrinks.

No wonder that Golda Meir said, “Growing old is not for sissies.”

Dr Art Hister – Huge spike in knee replacement surgery

If you pardon this poor attempt at a pun, depending on where you stand, it’s either good news or bad news that according to a huge American survey, there’s been a very steep rise in the number of knee replacement procedures over the last several years.

Thus, based on data released by the Agency of Healthcare Research and Quality, between 2007 and 2010, the number of knee replacements done in the US rose by 157 % in women, and 144 % in men.

The good news is that so many more people who need a knee replaced are getting that procedure done, including lots of elderly, who used to be excluded from getting this kind of operation.

But now that the elderly are living so much longer, it’s become much more routine for a senior in decent health to get a knee – or a hip – replaced – because there’s a very good chance they’ll live a long time with that new joint.

The bad news is that knee replacement operations have risen most dramatically among baby boomers, and the most likely reason for that is excess weight since obesity is a major risk factor for wearing out a large weight-bearing joint like a knee or a hip.

And the even worse news is that this trend is only going to get worse as all those overweight and obese kids out there trudge their way into middle age.

Dr Art Hister – Yet Another Reason to Exercise

A terrific talk on aging I heard a while ago pointed out something that I had never considered but which seems to be quite true, and it’s a very depressing thought.

This aging expert pointed out that although you often see pictures of a 70-year-old doing something quite amazing like climbing Mount Kilimanjaro, for example, but you never see an 85-year-old doing something similar.

That’s because, he said, of age-related frailty, meaning that we lose our muscle strength as we grow older.
Thus, it’s commonly said that we lose roughly 1 % of our muscle mass every year beyond the age of 40, and eventually – sometime between 75 and 85 for nearly all of us – we reach a tipping point of lost muscle mass when we can’t do so many – or even any – of the things we used to do so easily years before.

So the great news is that maybe that doesn’t have to happen.

In a study with terrifically hopeful possibilities, researchers at the University of Pittsburgh examined 40 competitive athletes – runners, cyclists, swimmers – between the ages of 40 and 81, and the researchers found that – quite to their surprise – that not only did those athletes have as much muscle tissue as people decades younger than them, they also remained nearly as strong as many people a couple of decades younger than them.

Now, clearly these were elite athletes and very few of us are able to train as much as these people do.

But this isn’t an all-or-none situation so seems to me that even some regular exercise can delay or postpone that heretofore seemingly inevitable frailty that the elderly suffer and which condemns so many seniors to having to give up their independence.

And honestly, doesn’t some exercise done a few times a week seem like a small price to pay for raising your chances to live a longer independent life down the line?

Dr Art Hister – Watchful Waiting and Prostate Cancer

Yet another study (published in the Journal of Clinical Oncology) has concluded that for many cases of prostate cancer, “watchful waiting”, that is, doing nothing at all and just letting nature take its course, is as good a tactic as getting any of the most advanced therapies we have to offer.

In this study of 769 patients with a median age of 66 who had been diagnosed with the kind of prostate cancer that should not be overly aggressive (and remember, that’s the vast majority of prostate cancers), 1/3 of the men opted – as one would expect – for some kind of therapy, either radiation or surgery.

But 2/3 of these men opted for watchful waiting instead.

At the end of 10 years, the researchers concluded that doing nothing “caused no apparent harm,” meaning that the men who chose “watchful waiting” were just as likely to be alive and just as likely to not having had their malignancy spread as were the men who had opted for intervention.

Yet the key difference is that the no-treatment guys were way better off on average since they had clearly not suffered any side effects or complications from doing nothing as opposed to the men who had chosen radiation or surgery, both of which come with risks attached.

The bottom line: prostate cancer is very common but only kills or harms a small portion of the men who end up with that malignancy, especially if the men are over age 65, and although all of us are always eager to “treat” a cancer, sometimes that treatment should be “nothing”.

Dr Art Hister – An Easy way to lower your risk of diabetes

Here’s an easy and very welcome way to lower your risk of diabetes: just sleep more.

More accurately, make sure to get just the right amount of good quality sleep.

At least that’s what a study published in the journal Diabetes Care found was the case for obese teenagers, and what’s true for those kids is very likely also true for other people as well, including even healthy adults.

In this study, researchers looked at 62 obese teenagers (average age 14) and they found that both “insufficient” and “excessive” sleep were linked to abnormal blood glucose levels (and too little sleep was also linked to abnormal insulin levels).

Why?

Probably because proper sleep helps regulate hormonal function, and one of the most important hormones, of course, is insulin.

That’s also why some experts believe that our obesity epidemic is partly a function of the lack of adequate sleep we are all suffering from these days.

Bottom line: good quality sleep is very important for good health (not just for weight control) so don’t cheat on your sleep.

 

Dr Art Hister – Keep Medications Away from Kids

A recent review of accidental poisonings among American kids under the age of 5 found that the rate of such poisonings has increased by 22 % from 2001 to 2008, the last year for which adequate data is available. This is a startlingly large increase given the fact that the number of kids in that age group has only increased by about 8% over the same time span.

Why have such poisonings risen so sharply?

Lots of reasons, but one stands out: there are just so many more medications out there and so many more of us are using at least one drug, and often, of course, several at a time.

Accidental use of drugs is a completely preventable problem, so if you have any kids in the house, or if any are ever likely to visit, be sure to put all your medications in a safe place that is very hard, if not impossible, for a young person to access.

And as a new grandparent myself, I make this special plea to other grandparents because that’s one special situation – a grandchild visiting a grandparent – where extra caution is often needed.

Dr. Art Hister – Think Positive to Live Better

Although most cultures have long acknowledged that how “sick” we are is often a function of how we feel about the rest of our lives, i.e. that the mind and body are intimately connected, western medicine has been pretty sceptical about that link, mostly because it’s very hard to measure that kind of connection, and what scientists can’t measure, they generally ignore or even worse, disparage.

But the truth is that there is an intimate connection between “the head” and “the body”, and that connection is at the root of lots of what works and doesn’t work in medicine.

Take this very interesting study published recently in the American Heart Journal.

In this study researchers took 30 people who were suffering with chest pain and who were undergoing angiography (a procedure to check the state of the heart arteries), none of whom actually had significant heart disease, although they all thought that that in fact was the reason for their pain, and gave them all the same medication.

However, the researchers told half the patients that they were getting a drug that would not only relieve their pain, but that the drug would also improve their arterial function.

The truth, however, is that the patients were just being given a saline solution.

Not surprisingly, those people who were told they were getting an active drug not only reported a dip in the amount of pain they were suffering, but their arteries actually changed as a result of the suggestion that they were getting an active drug.

The control group had exactly the opposite reaction: they reported an increase in pain and their arteries changed in the opposite direction to the “suggestion” group.

In other words, expect a drug to work and it is very much more likely to work than if you go into the therapy expecting no results.

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