A Fat Problem With Heart Health Wisdom – awesome post from jayman. look at the chart. just look at it!
Stress’s impact can affect future generations’ genes – “For the first time, genes chemically silenced by stress during life have been shown to remain silenced in eggs and sperm, allowing the effect to be passed down to the next generation…. They found that a tiny number of methylated gene regions survived unerased: an average of just 233 out of approximately 25,000 in the germ cells examined…. Do the markings survive simply because the erasure process may not always work properly, or are they deliberately spared so that the information they carry is passed to the next generation? The finding ‘doesn’t solve this question’, says Hackett. ‘But it’s a proof of principle for one possible mechanism by which traits might be inherited epigenetically.'”
four part series from frank salter — deals mainly with australia, but still an important read for everyone: The War Against Human Nature in the Social Sciences and The War against Human Nature II: Gender Studies (Part 1) and The War against Human Nature II: Gender Studies (Part 2) and The War Against Human Nature III: Race and the Nation in the Media
HVGIQ: Haiti – “A weighted average of the Cotten study and the de Ronceray study gives us an IQ of 68 for Haiti. More or less identical to the estimate currently used by Lynn.” – from jason malloy @human varieties. see also A Note on the Hypothesized Haitian Average IQ from nelson.
Sex differences on g and non-g intellectual performance reveal potential sources of STEM discrepancies – “Sex differences in cognition are masked by the general factor of intelligence (g). The difference in favoring boys increases across adolescence up to 4 IQ points. Boys show an advantage in mechanical reasoning irrespective of latent g. This advantage might help to understand sex discrepancies in STEM disciplines.” – via mangan.
News in Brief: Ancient human DNA suggests minimal interbreeding – “Genetic analysis indicates Stone Age people mated infrequently with Neandertals and other close relatives” – see also dienekes. also peter frost: When was the split?
Messing with the privates – “[W]omen in the generality are physically different from men.” – thank you for noticing, john! (~_^) – the derb on, amongst other things, the physical differences between men & women and what that means wrt women in the military and on the front lines (bad idea!). eg.: “‘Using the standard Army Physical Fitness Test … the upper quintile of women at West Point achieved scores on the test equivalent to the bottom quintile of men.'”
The case for earlier Out-of-Africa – @dienekes’.
The Liberals’ War on Science – “41 percent of Democrats are young Earth creationists….”
Emotional Smarts Tied to General IQ – “The same brain regions that perform cognitive tasks may also provide social intelligence, according to a new study.”
Social evolution: The ritual animal – “A major aim of the investigation is to test Whitehouse’s theory that rituals come in two broad types, which have different effects on group bonding. Routine actions such as prayers at church, mosque or synagogue, or the daily pledge of allegiance recited in many US elementary schools, are rituals operating in what Whitehouse calls the ‘doctrinal mode’…. Rare, traumatic activities such as beating, scarring or self-mutilation, by contrast, are rituals operating in what Whitehouse calls the ‘imagistic mode’. ‘Traumatic rituals create strong bonds among those who experience them together,’ he says, which makes them especially suited to creating small, intensely committed groups such as cults, military platoons or terrorist cells…. [L]ow-frequency but high-arousal imagistic varieties that were more common in societies with a smaller average community size, and high-frequency, low-arousal doctrinal rituals that were more established in societies in which communities are larger.”
‘Man Flu’ might not be a myth after all – “‘Man Flu’ might not be a myth after all as they have different brains, a female academic has claimed. Dr Amanda Ellison claims that men really do suffer more with coughs and colds as they have more temperature receptors in the brain which causes them to experience the symptoms more acutely than the fairer sex.”
Polynesians reached South America, picked up sweet potatoes, went home – “Tubers were spread from New Zealand to Hawaii before European contact.”
Diet, Parental Behavior, and Preschool Can Boost Children’s IQ – wonder if the effects are permanent? the diet one (3.5 points w/omega-3) certainly might be.
bonus: echidna penises have four heads – what more is there to say?
bonus bonus: Ethnic origins of US attendees of 2013 World Economic Forum in Davos – @race/history/evolution.
bonus bonus bonus: Chinese man kept alive by self-built dialysis machine – extra iq points can come in d*mn handy!
bonus bonus bonus bonus: HIV-like viruses in non-human primates have existed much longer than previously thought – “Viruses similar to those that cause AIDS in humans were present in non-human primates in Africa at least 5 million years ago and perhaps up to 12 million years ago….”
(note: comments do not require an email. echidna penis – NSFW!)