#autism

#autism

They had his address, and they had his attorney's name. They had all the information they needed to do this in a different manner," his lawyer said.

But now US researchers say that natural selection could have given rise to autism-associated genes, with behaviours associated with the disorder generally involving cognitive traits that are unique to humans. Writing in the journal Molecular Biology and Evolution, experts at Stanford University discovered that the most abundant type of outer-layer brain neurons-called L2/3 IT neurons-evolved exceptionally quickly in humans compared to other mammals.

Americans are receiving medical guidance from President Trump and top health officials like Secretary of Health and Human Services Robert F. Kennedy Jr. that runs counter to mainstream medicine. For example, this week Trump linked Tylenol to autism despite little medical evidence. How are Americans meant to make important decisions about their health at this confusing moment?

Early in her career, when she was living in Nashville, Swift pronounced words with short vowels, a classic feature of a southern US accent. The twang faded as she moved from country into pop music, and the pitch got lower when she moved to New York City. Swift is no different from many other people who adapt their dialect throughout their lives, says linguist Alice Gaby.

According to Martin Makary, head of the US Food and Drug Administration (FDA), the drug leucovorin will help hundreds of thousands of kids with autism. But a day after Makary praised leucovorin's powers at a White House event, some specialists are warning that the science to warrant Makary's enthusiasm is far from solid. Those researchers say that the drug's efficacy has not been established, that scientists don't know how much of the drug to give or how people should take it, and that safety data in children are lacking.

Genetics plays a major role in autism, but scientists are also investigating the potential role of environmental factors such as parental age, premature birth and prenatal exposure to drugs, environmental chemicals or infections. The idea that something that occurs during pregnancy may influence neurodevelopment isn't a particularly new or crazy or outlandish idea, said Renee Gardner, an associate professor of epidemiology at Sweden's Karolinska Institute. We know there's a large heritable or familial influence, but environment interacts with genetic tendencies.