Lifeboat Foundation

For a humble, microscopic worm with only 302 neurons, C. elegans has had a lot of firsts. It was the first multicellular animal to have its whole genome sequenced. It was also the spark that lit the connectome fire—the revolutionary idea that mapping the entirety of connections among neurons will unveil secrets of our minds, memory, and consciousness. And if the connectomists are to be believed, a map of individual brains may be the blueprint that will one day hurtle AI into human-level intelligence, or reconstruct an entire human mind in digital form.

More than 30 years ago, a pioneering group of scientists painstakingly traced and reconstructed the roundworm’s neural wiring by hand. The “heroic” effort, unaided by modern computers and brain-mapping algorithms, resulted in the first connectome in 1986.

Yet the “mind of the worm” map had significant lapses. For one, it only focused on one sex, the hermaphrodite—a “female” equivalent that can self-fertilize. This makes it hard to tell which connections are universal for the species, and which are dependent on sex and reproduction. For another, because the effort relied entirely on human beings who get tired, bored, and mess up, the map wasn’t entirely accurate. Even with multiple rounds of subsequent refinements, errors could linger, which would royally screw up any interpretation of results using these maps.

A new study scanned 22,484 pornography sites and found them riddled with trackers from major technology companies.

LOS ANGELES (AP) — New research gives some biological clues to why women may be more likely than men to develop Alzheimer’s disease and how this most common form of dementia varies by sex.

At the Alzheimer’s Association International Conference in Los Angeles on Tuesday, scientists offered evidence that the disease may spread differently in the brains of women than in men. Other researchers showed that several newly identified genes seem related to the disease risk by sex.

Two-thirds of Alzheimer’s cases in the U.S. are in women and “it’s not just because we live longer,” said Maria Carrillo, the association’s chief science officer. There’s also “a biological underpinning” for sex differences in the disease, she said.

Those who had adhered to statin treatment vs those who had not were found to have 34% lower all-cause mortality rates. Fewer atherosclerotic cardiovascular disease events were reported in relation to adherence to statins. Irrespective of age and sex, reduced mortality and cardiovascular morbidity may be seen in older adults in relation to adherence to statins.

Internal Medicine Article: Statin use over 65 years of age and all-cause mortality: A 10-year follow-up of 19,518 people.

Certain plants, insects, crustaceans and fish possess the uncanny ability to change the sex of their offspring before they are born. Mammals have never before demonstrated this genetic skill, until now.

A new Tel Aviv University study reveals a genetic system in mammals that enables two animals to mate and produce only females. A similar system based on identical principles would produce only males.

Research for the breakthrough study was led by Prof. Udi Qimron, Dr. Ido Yosef and Dr. Motti Gerlic and conducted by Dr. Liat Edry-Botzer, Rea Globus, Inbar Shlomovitz and Prof. Ariel Munitz, all of the Department of Clinical Microbiology and Immunology at TAU’s Sackler School of Medicine. The research was published on July 1 in EMBO Reports.

WASHINGTON (AP) — U.S. women will soon have another drug option designed to boost low sex drive: a shot they can give themselves in the thigh or abdomen that raises sexual interest for several hours.

The medication OK’d Friday by the Food and Drug Administration is only the second approved to increase sexual desire in a women, a market drugmakers have been trying to cultivate since the blockbuster success of Viagra for men in the late 1990s. The other drug is a daily pill.

The upside of the new drug “is that you only use it when you need it,” said Dr. Julia Johnson, a reproductive specialist at UMass Memorial Medical Center who was not involved in its development. “The downside is that it’s a shot — and some people are very squeamish.”

And your insurance might even cover the cost.

People who have bipolar disorder may be more likely to later develop Parkinson’s disease than people who do not have bipolar disorder, according at a study published in the May 22, 2019, online issue of Neurology, the medical journal of the American Academy of Neurology.

“Previous studies have shown a relationship between depression and Parkinson’s disease, but few studies have looked at whether there is a relationship between bipolar disorder and Parkinson’s,” said study author Mu-Hong Chen, MD, Ph.D., of Taipei Veterans General Hospital in Taiwan.

For the study, researchers examined a national Taiwanese health database for people were diagnosed with bipolar disorder between 2001 and 2009 and who had no history of Parkinson’s disease, for a total of 56,340 people. They were matched with 225,360 people of the same age, sex and other factors who had never been diagnosed with bipolar disorder or Parkinson’s disease as a control group. Then the two groups were followed until the end of 2011.

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LISTEN ABOVE: The director of the Twin Studies Center at California State University explains why all same-sex twins should get genetic testing.

Are you a twin? And if so, do you know with confidence whether you are an identical or fraternal twin?

Many parents rely on the results of an ultrasound. If there are two placentas, they assume they are carrying fraternal twins, and if there is one placenta, it’s assumed the twins are identical.

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