Tag Archive for: aging

What Happens to Our Metabolism?

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Have you ever said or heard someone else say, “I could eat whatever I wanted when I was young and I never gained weight!” What usually follows is something like, “Now I seem to gain weight just by thinking about a donut!”—the type of food may vary depending on the individual. Kids seem to eat anything they want and stay rail thin. Riley grew five inches between his five-year and six-year physicals but gained only three pounds. The logical question is what happens to metabolism as we get older?

Researchers in the Pennington Biomedical Laboratory attempted to find out together with researchers from around the world. As a combined effort, they recruited over 6,000 subjects between the ages of six months and 95 years old. The reason they needed so many research facilities is that the technique used to assess metabolism is labor intensive; it would have taken a decade for a single facility to do it. They didn’t test only resting metabolism. They were able to test the metabolism of subjects over several days under a variety of everyday conditions—in other words, people just living their lives.

There was no surprise from the aging perspective: metabolism declines as we get older. But when metabolism peaks and when it declines the most was surprising. I’ll cover that on Saturday as well as what we might be able to do to deal with it.

Tomorrow night is the Insider conference call. If you have questions you need answered about nutrition, supplements or exercise, this is the forum to get the most complete answers. If you’re not an Insider, join before 8 p.m. Eastern to participate.

What are you prepared to do today?

        Dr. Chet

Reference: Science 13 Aug 2021. 373 (6556):808-812. DOI: 10.1126/science.abe5017

Aging with a Vengeance and Your Proteome

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This year’s Super Bowl Webinar focused on aging with a vengeance—becoming the best version of yourself, no matter your age. The study we just reviewed on the proteome suggests that the people were healthier who were biochemically younger than their actual age. Here are the actions I believe can help at the three critical phases of aging that were identified in proteome study. As I find out more, I’ll be more specific.

31 to 37

If you have weight to lose, now is the time to lose it. Take it from me and my decades of experience with weight loss programs: it becomes more difficult the older you get. Find a way to eat that will maintain a reduced body weight and stick with it.

Reduce your protein intake. That may seem a little odd, but this is a time to focus on vegetables, fruit, whole grains, and quality oils.

Focus on your cardiovascular system by doing aerobic exercise on a regular basis. Use interval training to make the most of your time, and when you’re fit enough, you can add high-intensity interval training (HIIT) to your routine.

57 to 63

The kind of 80- to 85-year-old you’re going to be is dependent on what you do now. If you haven’t achieved a normal body weight, that’s a high priority just as it was in the prior age group. I know how difficult this is because it’s eluded me throughout my life; I lost a lot of weight and kept it off for years, but I’d still like to weigh less.

Increase protein intake to 1–1.5 grams per kilogram body weight per day.

Supplement your diet with essential amino acids. While the amounts are still not absolutely clear from the research, 10–20 grams per day is a good goal.

If you’re not already doing so, add weight training to your exercise routine. Start with using your own body weight, then add exercise tubes or light weights, and then use machines or free weights. Now is the time to retain or even increase your muscle mass.

75 and Older

If you haven’t achieved a normal body weight, there’s still time. My wonderful mother-in-law lost a significant amount of weight at this age, and she was an overweight diabetic in a wheelchair.

Increase protein intake to 1.5–2 grams per kilogram body weight per day. It’s difficult because appetite decreases and protein makes us feel full. It will help reduce the muscle loss that’s happening.

Supplement your diet with essential amino acids; the amounts are still between 10–20 grams per day.

Add weight training to your exercise routine. It will help you to retain or even increase your muscle mass. Stay within any orthopedic or other limitations, and get some help if you need to, but do it. Your primary caregiver will probably be glad to refer you to a physical therapist who can get you started safely.

The Bottom Line

For all that’s been written about healthy aging, we still don’t know very much. Healthy aging begins the day we are born, but we realize that only when it dawns on us that we’re aging. No matter your age, no matter your current state of health, it can be better. You can learn more in the replay of this year’s Super Bowl Webinar, but it will be available for only a little while longer.

The simple things I’ve talked about in this Memo are a beginning. When I know more, so will you. Inevitably, it comes back to a single question:

What are you prepared to do today?

        Dr. Chet

Reference: Nature Medicine. 2019. https://doi.org/10.1038/s41591-019-0673-2

Taking Charge of Your Health

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Flowers and trees have been winterized. The mulch has been spread throughout the yard. The leaves remain a continuing problem, but in short order the snow may take care of that. The one thing that I like about working in the yard is it gives me an extended opportunity to think. There are two things they have been on my mind.

Body Composition and Aging

I completely underestimated the change in body composition that occurs as we get older. I weigh about seven pounds more than I did about a year ago; the problem is that it’s all settled right around my waist. I’ve lost muscle mass in my arms, shoulders, and even my legs. From a strictly physical perspective, that’s the challenge I intend to address next. This will not be a “by the end of the year” thing because it’s going to take some time. I’ll write about how I intend to do it and then keep you posted on how it goes. Everyone is welcome to join me.

COVID-19 Isn’t Going Away

The second thing I’ve been thinking about is the COVID-19 virus. I’ve had the opportunity to read a lot of material I want to cover in upcoming memos that are not related to the pandemic. But the damage from this pandemic continues to increase, at least for the time being, and it would not be responsible for me to ignore COVID-19 all together. There’s some fascinating research that I think adds to the Swiss cheese approach in the last Memo.

Many people seem to be working themselves into a frenzy over possible state restrictions on activities and the insistence on wearing masks. Many of you know that attitude is everything. If we, as a nation, could just make up our minds that we’re going to do the best we can in each and every state, we could get through these temporary restrictions and get back to living our lives more completely than we are able to right now. If we don’t, then this is going to continue until we all decide to take things seriously.

The Bottom Line

Every morning, when I take Riley to school, we review our rules. The first rule is “Do the best you can.” It doesn’t have to be perfect. And you will make mistakes. Just do the best you can each and every day, because that’s all you can do. We review it after school on the drive home, and he gives me a thumbs up if he did his best that day. I hope we all can do the same thing in dealing with our health. The bottom line is that in all phases of our health, let’s do the best we can.

The Insider Conference Call is Wednesday evening. Do you have questions you’d like answered about supplements, weight loss, or any other topic related to health? Become an Insider today and gain the benefit of our discussion.

What are you prepared to do today?

        Dr. Chet

Do Fit People Live Longer?

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Will being fit help you live longer? Does the improvement to the respiratory, cardiovascular, and muscular systems result in an increase in longevity? Researchers in Austria did a thorough review of the science of fitness to find out.

They approached it in the same manner I would: review the systems involved and how aging affected them. Then find out how each system responds to exercise training. Finally, look at the diseases related to aging to see if fitness made a difference.

It would be great to say that they concluded that fitness impacts how long we will live, but at this point, there’s no conclusive evidence that it does. But what being fit can do is give you more life in each day. The systems’ response to exercise may not stop the Grim Reaper, but at least he will have to chase you to catch you.

The researchers focused on those systems directly related to fitness, but there are so many more benefits to your hormonal system, nervous system, digestive system, and more. You may not live a single second longer, but I believe you will live better every second you have—less time in the nursing home or hospital, and more time out doing what you want. And that’s definitely worth the time and the effort.

The countdown to the Super Bowl Webinar is at eight days. Whether you’re already very fit, restricted in the intensity you can exercise, or haven’t worked out in years, I’ll teach you how to lose more fat than any other program. Sign up today.

What are you prepared to do today?

Dr. Chet

 

Reference: Front Biosci. 2018. Mar 1;23:1505-1516.

 

The Way Things Used to Be

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On the radio, I heard a woman say, “I just want things to be the way they used to be!” That mirrors the frustration that I read from emails people send about being older. I don’t necessarily mean those over 60; I get the same type of frustration from 30-year-olds who find that their bodies don’t respond the way they did in their teens.

Things can’t be the way they used to be. Your body is a miracle, plain and simple, but it’s designed to run its course. It’s the original planned obsolescence. Hormones change. Joints wear. On top of that, we don’t do ourselves any favors with our lifestyle.

Things can’t be the way they used to be and that’s good. We remember what was good about those times, but we forget what wasn’t good and idealize the rest; we don’t remember the zits, the braces, and the awkwardness of inhabiting a body we weren’t used to using.

This goes back to the last two messages. You have to decide who’s in charge and then work to be the best version of you that you can be. Forget about the way things used to be—make your body the best that it can be today.

Spend some time examining your health habits. You may think you’re eating well, but it may not be enough of the right nutrients and that’s keeping you too thin or too heavy. The exercise you do may not be the best for the body you have today. It’s going to be trial and error, but you’ll do your research, consult the experts, and figure it out one piece at a time.

Stop wishing for a body gone by. Make what you have the best it can be right now. Who knows? It may just be better than you ever imagined it could be.

What are you prepared to do today?

Dr. Chet

 

The Cause of Obesity: Muscle Aging

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In the previous message, I said that there was one factor besides calorie intake that affected the rate of obesity in the United States. Because a picture is worth a thousand words, just take a look at the CT scans at right (1). These are scans of the thighs of a 25-year-old man and an 81-year-old man, matched for body weight and height. There are a couple of things that you can notice. The white area is the muscle and the dark area is mostly fat; the older man’s thigh has visibly less muscle mass . . .

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