John Nejman

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What does a scientist think of "right brain/left brain" tests?

<b>Maybe you've noticed the recent spate of "brain tests" making the rounds online.</b><p>There are different versions - several have been shared hundreds of thousands of times on Facebook - but most of them take the form of a quiz which purports to show how "left-brained" or "right-brained" you are. The …

The Brain

The Science of Faster Memorization with Spaced Repetition

Do you like learning new things?Check out skillhacking to find out what works best!You can’t talk for too long about the science of learning without …


On the Anniversary of the First Acid Trip, What Do We Now Know About LSD?

Science busts some of the myths that spread around the drug in the 60s.<p>A handful of individual drug experiences are known to millions. Aldous Huxley's mescaline dose, recorded in <i>The Doors of Perception</i> (1954), is one. Samuel Taylor Coleridge's 1797 opium visions, enshrined in his poem "Kubla Khan," …

Mental Health

Madagascar marvel: Divers find fossils of extinct giant lemurs

<b>(CNN) —</b> Around 5,000 years ago, the island of Madagascar would have resembled a Sci-Fi novel.<p>Strange, prickly forests, gorilla-sized lemurs, pygmy hippopotamuses, horned crocodile and elephant birds whose eggs were 180 times the size of what you'd find in your fridge today, all called the African …


Smartphone dongle detects HIV and syphilis markers in 15 minutes

That smartphones have evolved to be capable of much more than making and receiving calls isn't news to anyone, but work being done to refashion them …

Medical Technology