Tag Archives: health

We Need an Unconventional Approach to Care for Your Health Better (with Guest Chris Kresser)

The current approach to healthcare in the United States isn’t working.

Modern medicine has been a remarkable triumph. In the twentieth century, the development of antibiotics, antimicrobials, and vaccines eradicated a wide array of diseases that formerly killed millions of people.

Things have obviously changed. Now, most patients are coming to the doctor not to be treated for tuberculosis or pneumonia, but instead for ongoing treatment of chronic diseases, like atherosclerosis, diabetes, arthritis, obesity, cancer, etc. In fact, half of all Americans have a chronic disease, and seven of the top ten causes of deaths are chronic illnesses. No doubt, part of the reason for this predicament is simply because we are living longer, long enough to develop these conditions. Yet the burden of chronic disease appears to be cascading into younger generations. Diseases that were formerly only found in older people, like type 2 diabetes, are now being diagnosed more and more in children. It has gotten to the point that public health experts have projected that the steady rise in life expectancy of the past two centuries may be coming to an end.

This is an alarming trend – and very difficult to reverse.

Why? Unfortunately, chronic disease is a more complicated problem than infectious disease. We can’t eliminate atherosclerosis just by taking a pill or an injection. Conditions like diabetes and heart disease develop gradually over the course of decades and are closely linked to the patient’s diet, environment, genetics, and lifestyle habits. A 10-15 minute doctor’s visit can only do so much. These conditions demand a more complex intervention, with more active participation on the part of the patient and the medical practitioner. The modern medical model, relying upon a battery of pharmaceutical drugs to suppress symptoms, falls hopelessly short of addressing the root causes of these types of illnesses, and we’re all paying the price.

We’ve come a long way, but we can’t solve modern challenges using the methods of last century. We need a new system. And my guest today has a plan for how to make it happen.


Does Dim Light at Night Make You Fat?

Before electricity, humans got all of their light via exposure to the sun, fire, and the moon and stars. This meant that nights were spent in relative darkness. Today, our environment is quite different. Our homes can now be brightly illuminated all the time, regardless of season or time of day. Also, our cities have bright LED street lamps that create “light pollution” filling outdoor city environments with much more light than is natural.

On the latest episode of humanOS Radio, I talk to Dr. Laura Fonken who is postdoctoral fellow in Steven Maier’s lab in the Department of Psychology and Neuroscience at the University of Colorado. Before joining the Maier lab, she and a group at Ohio State performed a fascinating experiment with rodents, in which they compared body weight gain in animals who only ate at night versus animals who only ate during the day. The results were startling – and had interesting potential implications for our own health.

Check out our interview here to learn more!


Sauna Bathing for Brain and Heart Health (Guest Jari Laukkanen, MD, PhD)

Taking a hot sauna regularly can feel good and relax you, but can it also prevent heart disease and Alzheimer’s disease?

If you’re from the US, you probably associate saunas with gyms and spas. But saunas have existed in some form for hundreds of years, particularly in Scandinavia, where they are used regularly as part of the culture. Nowhere are they more ubiquitous than in Finland – it is estimated that 99% of Finns use one at least once per week. They have traditionally been used as places to relax with friends and family and to recover from intense physical activity.

And while sauna usage is typically associated with health behaviors, like for example using a sauna after exercise or before sleep as a way to relax, research has now taken a closer look to see if sauna usage itself is health promoting.

In the newest episode of humanOS Radio, I talk with Jari Laukkanen, MD, Ph.D. Jari is a clinical cardiologist who runs a research lab at the University of Eastern Finland. He primarily studies the role of a wide range of cardiometabolic risk factors in relation to cardiovascular disease. In his latest study, he and his colleagues examined thousands of Finnish men over the course of two decades. Participants were divided into groups based on how frequently they sauna. It turns out that men who sauna more frequently appear to have a tremendous benefit to their heart and brain health. Listen here to learn more.


Can We Reverse Aging With “Young Blood?”

Can we stave off the aging process by transfusing young blood into old people? The idea that youthful blood might have rejuvenating properties has lingered in popular imagination for centuries.

In this episode of humanOS Radio, I speak with Drs. Michael and Irina Conboy of the Department of Bioengineering at UC Berkeley. Their lab investigates the process of tissue repair throughout the body and is trying to determine why damaged tissue is not productively repaired as the body ages. In their most recent study, they discovered that molecules in aged blood may actually be interfering with the regenerative process. They are trying to identify these inhibitors, and perhaps find a way to clear them from the blood. Are we on the cusp of a breakthrough to help us stay at our peak abilities for decades longer?


Is Good Cholesterol Overrated? How to Make Your HDL Work Better

For years, we’ve heard that there are two primary types of cholesterol on a standard lipid panel that really matter for heart health.

The first one is the low-density lipoprotein (LDL) or “bad cholesterol,” which you want to keep low. The other type is high-density lipoprotein (HDL), or “good cholesterol,” which you want to have as much of that as possible. Right?

Well, recent research has suggested that the relationship between HDL cholesterol and cardiovascular disease is far more complicated than previously believed. In fact, having high HDL may not necessarily mean that you’re at reduced risk of having a heart attack.

In this blog post, we’ll take a closer look at HDL, and discuss some important nuances.


How Olive Oil Keeps Your Blood Vessels Healthy

We’ve known for a long time that people who consume more olive oil – as opposed to other sources of dietary fat – are protected in certain ways from heart disease. And some recent research has started to uncover the reasons why.

One compelling and unappreciated way that olive oil prevents cardiovascular disease has to do with its impact on blood pressure.

High blood pressure is often characterized as a “silent killer” because it can cause permanent damage throughout the body without any obvious symptoms. Tragically, by the time the problem becomes obvious, it is sometimes too late to reverse the damage.
About 70 million adults in the US have hypertension – that’s 1 in every 3! And only around 52% of people with hypertension have it under control. It is also likely that many are walking around with the condition who don’t even know they have it.

In this post, we will discuss why consuming extra virgin olive oil seems to help keep blood pressure in check – and how you can best take advantage of this in your own diet.


Sweeteners Part I: Sensation & Metabolism

We evolved to love sweet food – which is an adaptive preference for a hunter-gatherer. But in the modern world, we are inundated with tasty sugary treats 24/7. For many of us, this ready access to palatable food has come to the detriment of our waistlines, and has driven demand for sugar substitutes. Ostensibly, this might allow us to continue to fulfill our urge for sweet stuff without paying the price in extra calories. But is this safe? Or is it even an effective strategy?

In this article series, we will examine some of the evidence surrounding these sugar substitutes, and try to determine if they are indeed safe and effective. We will begin by discussing how these sweeteners are sensed by the body, and how the body handles them once they are consumed.


Research Reveals a Surprising Link Between Melatonin and Type 2 Diabetes

We typically associate the hormone melatonin with sleep. However, melatonin is actually involved in the timing and synchronization of a number of different physiological functions throughout the body. One of these functions is the regulation of blood sugar.

Recent research has found that a relatively large proportion of the human population is genetically predisposed to be more sensitive to the impact of this hormone on blood sugar control. This can lead to higher blood glucose levels, and ultimately greater risk of developing type 2 diabetes.

Here’s how it works, and what you can do about it.