Money and Finance
- Nigel Goldenfeld: We Need A Theory Of Life
Link to interview: Nigel Goldenfeld: We Need a Theory of LifeNigel Goldenfeld: The prejudice that one runs into often (but not always) when one talks about evolution is that evolution really is dominated by what's called vertical gene transfer, where...
- Autoimmune Panel Discussion
To get straight to the audio, go HERE. On Friday I taped an amazing panel discussion show covering all aspects of Autoimmune Disease reversal. It was comprised of Whitney Ross Gray, Sarah Ballantyne, Paul Jaminet and Dr. Terry Wahls. It addresses a variety...
- Gary Taubes On Econtalk
Taubes also posted the third part in his latest series of blog posts HERE (for the first two parts, go HERE and HERE).Gary Taubes, author of Good Calories, Bad Calories, talks to EconTalk host Russ Roberts about what we know about the relationship between...
- La Times Article: A Reversal On Carbs
Most people can count calories. Many have a clue about where fat lurks in their diets. However, fewer give carbohydrates much thought, or know why they should.But a growing number of top nutritional scientists blame excessive carbohydrates — not fat...
- Evolutionary Well-being: The Paleolithic Model
An evolutionary philosophy has direct implications for a happy and healthy lifestyle. By understanding how we as humans have evolved, we will get a much better understanding of how we can optimally function. Natural selection has shaped our body and mind...
Money and Finance
The human microbiome – Me, myself, us
WHAT’S a man? Or, indeed, a woman? Biologically, the answer might seem obvious. A human being is an individual who has grown from a fertilised egg which contained genes from both father and mother. A growing band of biologists, however, think this definition incomplete. They see people not just as individuals, but also as ecosystems. In their view, the descendant of the fertilised egg is merely one component of the system. The others are trillions of bacteria, each equally an individual, which are found in a person’s gut, his mouth, his scalp, his skin and all of the crevices and orifices that subtend from his body’s surface.
A healthy adult human harbours some 100 trillion bacteria in his gut alone. That is ten times as many bacterial cells as he has cells descended from the sperm and egg of his parents. These bugs, moreover, are diverse. Egg and sperm provide about 23,000 different genes. The microbiome, as the body’s commensal bacteria are collectively known, is reckoned to have around 3m. Admittedly, many of those millions are variations on common themes, but equally many are not, and even the number of those that are adds something to the body’s genetic mix.
And it really is a system, for evolution has aligned the interests of host and bugs. In exchange for raw materials and shelter the microbes that live in and on people feed and protect their hosts, and are thus integral to that host’s well-being. Neither wishes the other harm. In bad times, though, this alignment of interest can break down. Then, the microbiome may misbehave in ways which cause disease.
That bacteria can cause disease is no revelation. But the diseases in question are. Often, they are not acute infections of the sort 20th-century medicine has been so good at dealing with (and which have coloured doctors’ views of bacteria in ways that have made medical science slow to appreciate the richness and relevance of people’s microbial ecosystems). They are, rather, the chronic illnesses that are now, at least in the rich world, the main focus of medical attention. For, from obesity and diabetes, via heart disease, asthma and multiple sclerosis, to neurological conditions such as autism, the microbiome seems to play a crucial role.
- Nigel Goldenfeld: We Need A Theory Of Life
Link to interview: Nigel Goldenfeld: We Need a Theory of LifeNigel Goldenfeld: The prejudice that one runs into often (but not always) when one talks about evolution is that evolution really is dominated by what's called vertical gene transfer, where...
- Autoimmune Panel Discussion
To get straight to the audio, go HERE. On Friday I taped an amazing panel discussion show covering all aspects of Autoimmune Disease reversal. It was comprised of Whitney Ross Gray, Sarah Ballantyne, Paul Jaminet and Dr. Terry Wahls. It addresses a variety...
- Gary Taubes On Econtalk
Taubes also posted the third part in his latest series of blog posts HERE (for the first two parts, go HERE and HERE).Gary Taubes, author of Good Calories, Bad Calories, talks to EconTalk host Russ Roberts about what we know about the relationship between...
- La Times Article: A Reversal On Carbs
Most people can count calories. Many have a clue about where fat lurks in their diets. However, fewer give carbohydrates much thought, or know why they should.But a growing number of top nutritional scientists blame excessive carbohydrates — not fat...
- Evolutionary Well-being: The Paleolithic Model
An evolutionary philosophy has direct implications for a happy and healthy lifestyle. By understanding how we as humans have evolved, we will get a much better understanding of how we can optimally function. Natural selection has shaped our body and mind...