health
gregladen | September 28, 2017Two or three thoughts about the current crisis.
When there is a major climate disaster in the US, people move. Since the US is big and has large gaps in population, it looks different than when a disaster happens in some other places. Five million (or more) Syrians leaving the Levant left a major mark across the globe. A half million leaving the Katrina hit zone was barely noticed on a global, or even national, scale, not just because it was one tenth the amount, but because of our size and space as well.
Something close to half the 400K or so displaced by Katrina (over half of them from…
dr. dolittle | September 27, 2017
Although female northern elephant seals only typically deliver one pup, females will sometimes nurse offspring from other mothers as in this photo by Brocken Inaglory via Wikimedia commons. A situation like this would result in less milk available to each nursing pup.
I just read an interesting paper published in Physiology. Animals periodically undergo periods of food deprivation such as during hibernation, mating, molting and migration. During these period of fasting, they become insulin resistant which helps to preserve glucose stores in the body. In this review, the…
esiegel | August 10, 2017“I'm old enough to remember when the polio vaccine was still new. Also, it hadn't been that long since most people who caught pneumonia died from it. These medical breakthroughs were practically miracles.” -Pat Cadigan
When it comes to health, safety, and how we interact with the world around us, pretty much everyone recognizes the importance of making our decisions based on sound science. Yet even when presented with the same evidence, many people will draw different conclusions. Why? Because once we’ve made up our minds that something is either good or bad for us, we cherry-pick the…
gregladen | July 31, 2017We do not know if the airing of "13 Reasons Why" caused an increase in suicide or not, and that in and of itself is astonishing. In the world of very advanced techniques for collecting and monitoring data, and in a world that we are led to believe is on the edge of the next epidemic, you would think the suicide rate could be estimated on the fly, with minor corrections later. Climate scientists are able to assimilate tens of thousands of data readings taken multiple times a day around the world into estimates of global surface temperatures. There is a daily ongoing estimate that I assume…
dr. dolittle | July 31, 2017A new study shows that walking your dog is good for your health. Here is a YouTube video summarizing the findings of the study:
Let's not forget that walking your dog is also very good for your dog. According to PetMD, some benefits include weight control, keeping your dog limber, controlling destructive behaviors and hyperactivity, and of course building a bond between you and your pet.
If you have a cat however, it might be best to just let the cat walk you as demonstrated in this YouTube video:
gregladen | July 1, 2017Since reading this book, and listening to certain episodes of this podcast, I've been thinking about addiction now and then. Today, this came across my desk:
I've not read the original article, but it certainly looks interesting.
On the other hand it also brings up several difficult questions. Which, I'm sure, you immediately see.
gregladen | June 27, 2017The benefits of vaccines far outweigh the minuscule risks, but some parents still question their safety. John Oliver discusses why some people may still feel uncertainty about childhood vaccinations.
gregladen | February 1, 2017Well, not my placenta exactly, but ... well, someone's?
Did you now that the placenta that is born out of a female primate's body is an organ of the infant also being born? It is the first body part you lose. I use the term "primate" here because, even though all the "placental mammals" as we are called share some basic reproductive gestational anatomy, there are major categories across the mammals in this area, and primates are distinct from, for example, carnivores. These differences are of course very important when one is considering placentophagy. I mean, you wouldn't confuse a…
dr. dolittle | November 2, 2016
The opening session was great!
By Tatsuo Yamashita (Flickr: ワンセグで紅白をみます 2012/12/31) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
Eric Hoffman (Children's National Medical Center) presented work on chronic inflammatory diseases in children. He mentioned that while diets high in fats and carbohydrates (i.e. Western diets), obesity and sedentary lifestyles are associated with inflammation and related diseases (ex: asthma, type 2 diabetes), another contributor could be hormones. Kids who stay indoors more often have reduced exposure to sunlight and exercise…
gregladen | August 4, 2016It is the time of year that we talk about drowning. I’m focusing here on the US, and for the most part, recreational drowning, as opposed to being drowned in a flood. Also, I'm using mainly information from Minnesota as an exemplar. It turns out that analyzing drowning data, and social behavior related to drowning, at the state level (as a proxy for the media market level) is important, because, I contend, the likelihood of a child drowning in a given media market is roughly inversly proportinate to the number of children who have drown or nearly drown in that same media market over the…
gregladen | June 22, 2016Some sort of Hops Flowers Substance is a common dietary supplement used by post-menopausal women. A recent study looks at one molecule extracted from hops to see if it could help reduce the chance of getting breast cancer.
The paper is in the journal Chemical Research in Toxicology, and is called Hop (Humulus lupulus L.) Extract and 6-Prenylnaringenin Induce P450 1A1 Catalyzed Estrogen 2-Hydroxylation, by Shuai Wang, Tareisha L. Dunlap, Caitlin E. Howell, Obinna C. Mbachu, Emily A. Rue, Rasika Phansalkar, Shao-Nong Chen, Guido F. Pauli, Birgit M. Dietz, and Judy L. Bolton.
One factor that…
gregladen | June 17, 2016This is great news if you are a mouse!
Here's the summary of the paper:
NAD+ repletion improves mitochondrial and stem cell function and enhances life span in mice, by
Hongbo Zhang, Dongryeol Ryu, Yibo Wu, Karim Gariani, Xu Wang, Peiling Luan, Davide D’Amico, Eduardo R. Ropelle, Matthias P. Lutolf, Ruedi Aebersold, Kristina Schoonjans, Keir J. Menzies, Johan Auwerx, (here, if you subscribe to Science.)
The oxidized form of cellular nicotinamide adenine dinucleotide (NAD+) is critical for mitochondrial function, and its supplementation can lead to increased longevity. Zhang et al. found that…
gregladen | May 17, 2016The story goes that if you do, it will stay in your digestive track for seven years. Is this true?
According to the Mayo Clinic,
Although chewing gum is designed to be chewed and not swallowed, it generally isn't harmful if swallowed. Folklore suggests that swallowed gum sits in your stomach for seven years before it can be digested. But this isn't true. If you swallow gum, it's true that your body can't digest it. But the gum doesn't stay in your stomach. It moves relatively intact through your digestive system and is excreted in your stool.
On rare occasions, large amounts of swallowed gum…
gregladen | April 21, 2016Somebody just sent me this lyme disease infographic. It is too big to just display on a blog post, so here is the link to the full size graphic. It may come in handy this Spring/Summer!
gregladen | March 15, 2016Rotavirus vaccine is very effective in preventing this diarrhea inducing stomach illness in children in developed countries. But it appears that in certain poorer regions, i.e. Bangladesh, the same vaccine has a reduced effect, inducing sufficient immunity in fewer than half of the children who receive it. In the early days of the polio vaccine, a similar pattern was observed.
Why is this? What can be done about it? What does it all mean?
We interviewed Carina Storrs -- who visited the affected areas and has been writing about it over recent weeks -- here, at Ikonokast. Carina is a…
aardvarchaeology | January 7, 2016 The Institutet radio show: 2015 Enlighteners of the Year
The Swedish Skeptics have announced their annual awards for 2015.
The Enlightener of the Year award is given to a radio show on Swedish Broadcasting's channel 3, Institutet, "The Institute". Show hosts Karin Gyllenklev and Jesper Rönndahl use humour to reach out with science content to a wide audience.
The Deceiver of the Year anti-award is given to a neighbouring show of the aforementioned, channel 1's Kaliber, "Calibre". They get this doubtful honour for a show where they suggested that vaccination against HPV, Human Papilloma…
gregladen | November 6, 2015A few days ago the UN agency in charge of keeping track of cancer risks listed meat and processed meats as to some degree or another likely to cause an increase in cancer risks. I wrote about that here. More recently. I was interviewed by Joshua Holland on the Politics and Reality Radio show about that story. Here is the interview for your listening pleasure:
gregladen | October 27, 2015See what I did there?
As you know, the UN WHO International Agency for Research on Cancer has listed Red Meat as Group 2A (probably carcinogenic to humans) and processed meat at Group 1 (causes cancer).
And everyone is upset. The most common reaction to these listings is to criticize WHO. The least common reaction to these listings is to learn what the listings are, what they mean, what they mean to you, to the meat industry, to cancer research, and all that. Here, I will try to provide some perspective on some of this.
WHO is probably more likely to list something as cancer causing
It is…
lborkowski | September 21, 2015by Jonathan Heller
The dominant narrative in the United States is that, as individuals, we hold the key to our own success. We are told to pull ourselves up by our bootstraps and that if we just try hard enough, we’ll succeed.
In the world of health, this translates into a focus on personal behaviors: eat well, get exercise, don’t smoke, and you’ll be healthy. The health care system becomes the solution to health problems: if we are sick, a doctor can fix our individual problem. There are, of course, exceptions to this way of thinking. But, by and large, this is our narrative of health.
We in…
aardvarchaeology | August 11, 2015I've been a blood donor for over twenty years. The other day a doctor called me and asked me if instead of my normal quarterly donation, I'd be willing to give a few extra hours of my time along with a chunk of white blood cells. I said yes.
There's this transplant patient at a hospital in Stockholm. Like all such patients this person, let's call her Joan (I have no idea what her real name is), is on immune suppressant drugs to keep her body from tossing out the transplanted organ. She now seems to have contracted a difficult infection. Unfortunately she's developed antibodies against run-of-…