Well, this looks pretty exciting:
Systemic attenuation of the TGF-β pathway by a single drug simultaneously rejuvenates hippocampal neurogenesis and myogenesis in the same old mammal.
As an oldish mammal myself, I say “faster please.”
Category Archives: Science And Society
The Low-Fat Diet
…will be viewed by history as the worst fad diet ever. And yet Michelle’s school-lunch program continues to abuse millions of children.
Cryopreservation
This looks like a huge breakthrough in vitrification. Note that they don’t mention the implications for cryonics, though.
Common Sense On Climate
The Economist remains overconcerned, but at least its editorial board recognizes how unrealistic the warm mongers are:
In short: thinking caps should replace hair shirts, and pragmatism should replace green theology.
But that doesn’t support the collectivist agenda.
Judith Curry
She is a heretic, who has been cast out of the tribe:
In the run-up to the Paris conference, said Curry, much ink has been spilled over whether the individual emissions pledges made so far by more than 150 countries — their ‘intentional nationally determined contributions’, to borrow the jargon — will be enough to stop the planet from crossing the ‘dangerous’ threshold of becoming 2°C hotter than in pre-industrial times. Much of the conference will consist of attempts to make these targets legally binding. This debate will be conducted on the basis that there is a known, mechanistic relationship between the concentration of carbon dioxide in the atmosphere and how world average temperatures will rise.
Unfortunately, as Curry has shown, there isn’t. Any such projection is meaningless, unless it accounts for natural variability and gives a value for ‘climate sensitivity’ —i.e., how much hotter the world will get if the level of CO2 doubles. Until 2007, the UN Intergovernmental Panel on Climate Change (IPCC) gave a ‘best estimate’ of 3°C. But in its latest, 2013 report, the IPCC abandoned this, because the uncertainties are so great. Its ‘likely’ range is now vast — 1.5°C to 4.5°C.
This isn’t all. According to Curry, the claims being made by policymakers suggest they are still making new policy from the old, now discarded assumptions. Recent research suggests the climate sensitivity is significantly less than 3˚C. ‘There’s growing evidence that climate sensitivity is at the lower end of the spectrum, yet this has been totally ignored in the policy debate,’ Curry told me. ‘Even if the sensitivity is 2.5˚C, not 3˚C, that makes a substantial difference as to how fast we might get to a world that’s 2˚C warmer. A sensitivity of 2.5˚C makes it much less likely we will see 2˚C warming during the 21st century. There are so many uncertainties, but the policy people say the target is fixed. And if you question this, you will be slagged off as a denier.’
This is religion, not science.
Neil DeGrasse Tyson
…flaunts his ignorance (again) of both the history of exploration and the economics of spaceflight.
I do agree with him about the Apollo delusion, though.
DARPA’s Biotech Lab
This is interesting. I didn’t know it existed. I’m glad at least some of the federal money going toward health research is taking a more high-risk high-payoff approach.
Top Nutritionists Attempt To Reach A Consensus
…and end up in a food fight. This would be funnier if it didn’t have such profound implications for health. I don’t know why anyone pays attention to that quack Dean Ornish. It was low-fat recommendations like his that almost surely killed my father thirty-five years ago. I enjoyed this, too:
In the spirit of the conference, he did make a concession: Red meat, a staple of a Paleolithic diet, “is a real problem” due to its carbon footprint, said Eaton, and he proposed a more sustainable Paleo diet that instead derives its protein from plant sources, poultry, and seafood.
Because nothing is more important when it comes to nutrition than carbon footprint. And this:
Those who follow a low-glycemic diet might eat, for instance, pasta but not bagels, parsnips but not potatoes, grapes but not raisins.
Bagels are worse than pasta? Who knew?
From Hunting/Gathering To Farming
Yes, humans evolved in the age of agriculture.
Per the end of the piece, this doesn’t really invalidate the paleo diet theory. It makes sense that we would have adapted to milk; it’s a useful high-protein food source. There would have been less evolutionary pressure to be able to handle grain, because the ill effects don’t occur until later in life, past child-bearing age.
Treating Brain Cancer
After quitting my job, I decided to study for a Master’s degree in Nutritional Therapy. As I got deeper into my course work,I was shocked to discover that everything I had learned during my undergraduate studies was either false, misleading, or outdated information.
It’s an anecdote, but a pretty powerful one. The ignorance about nutrition in the health-care field is probably killing thousands.