How Our Longest Nerve Orchestrates the Mind-Body Connection
It is late at night. You are alone and wandering empty streets in search of your parked car when you hear footsteps creeping up from behind. Your heart pounds, your blood pressure skyrockets. Goose bumps appear on your arms, sweat on your palms. Your stomach knots and your muscles coil, ready to sprint or fight.…
Read MorePsychological Trauma in the Olympics
Every measure is taken to protect athletes from physical injury in competitive sports, while protection from mental injury is neglected. Yet athletes face extraordinary risks of mental trauma in competition. We insist upon helmets and other safety gear and impose stringent rules enforced by referees to protect athletes from physical injury, but as the recent…
Read MoreViral Infections Millions of Years Ago Promote Inheritance of Mental Illness
People understand that someone can be predisposed to mental illness by inheriting certain genes or gene variants, but new research is revealing that inherited mental illnesses are also promoted by alterations in our DNA that were caused by viral infection of our ancestors over a million years ago. Remarkably, the changes do not modify parts…
Read MoreHow the Tremendous Boost in Brain Power Arose Suddenly in Evolution–The Mystery of Myelin
“Why, if species have descended from other species by fine gradations, do we not everywhere see innumerable transitional forms?” — Charles Darwin in The Origin of Species. Charles Darwin proposed that evolution is driven by gradual variations in organisms that have survival advantage in a changing environment, but he recognized that new traits often…
Read MoreBig Mystery About the Little Brain
With all the stunning advances in neuroscience it may come as a surprise that a major part of the brain is a mystery to scientists. It is not a small oversight. This peculiar brain lobe contains ¾ of all the brain’s neurons! Astonishingly, its cellular structure is unlike anywhere else in the brain. The neurons…
Read MoreWhy the ‘Havana Syndrome’ happened
I was invited to write a commentary, “Why the Havana Syndrome Happened,” which was just published in the International Journal of Social Psychiatry. This syndrome refers to brain injury allegedly caused by a clandestine energy beam weapon employed by unknown agents who are hostile to the United States and its allies. The saga began…
Read MoreHow Early Trauma Can Pass Through Generations
Is it possible that psychological trauma that your grandparents suffered long before you were born could have been passed down through generations to reappear as mental health issues that afflict you? New experimental research by a team of investigators in Canada and Italy suggests the answer is yes. Mental health problems can be a legacy…
Read MoreWhy Your Tongue Sticks Out When You Thread a Needle
Ever wonder why your tongue sticks out when you thread a needle? To find out why (and understand rock singer Joe Cocker’s wild gesticulations), see my article in Quanta Magazine One day, while threading a needle to sew a button, I noticed that my tongue was sticking out. The same thing happened later, as…
Read MoreCOVID-19 School Closures Harmed Children’s Mental Health
There has been much conjecture about possible detrimental long-term consequences of school closures on young children and adolescents, but now a new study published in the journal Scientific Reports provides convincing evidence that the mental health of school children was impaired by school closures during the pandemic. The study surveyed 907 adolescents and their parents in…
Read MoreWhy the Brain and Body are Cross Wired
Someone who suffers a stroke in their left cerebral hemisphere will lose control over the right side of their body. Every doctor relies upon this well-known fact in performing neurological exams, but when I asked my doctor last week why this should be, all I got was a shoulder shrug. So I asked Professor Catherine…
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