Random

handedness

·August 28, 2019·4 min read

Lefty, righty brains count on same area for numbers

A new study debunks the popular myth that handedness plays a role in the lateralization of number processing in the brain. The study revealed, regardless of which is your dominant hand, the brain's location for number processing is the same.

Featured Neuroscience

·July 10, 2026·10 min read

Earliest Evidence of Right-Handedness Found

A new study identifies the oldest known evidence of "handedness" in the animal kingdom within the 550-million-year-old Ediacaran fossil Spriggina floundersi.

Featured Neuroscience Psychology

·January 9, 2024·6 min read

Why Do Most People Cradle Babies in Their Left Arm?

A novel study explores the curious phenomenon of why the majority of people prefer cradling a baby in the crook of their left arm. Research suggests that around 75% of individuals, regardless of their handedness, instinctively use their non-dominant arm to cradle a baby.

Featured Genetics Neuroscience

·October 23, 2016·4 min read

Earliest Evidence in Fossil Record for Right Handedness Discovered

Researchers have found the earliest evidence to date of right handedness in fossil records dating back 1.8 million years.

Featured Neuroscience

·June 30, 2026·11 min read

Hand Dominance Is Driven by Practice, Not Birth

The skill gap between our dominant and non-dominant hands is not innate, but rather an emergent consequence of a lifetime of asymmetrical practice that manifests exclusively during tool use.

Featured Neuroscience Open Neuroscience Articles Psychology

·July 17, 2017·6 min read

Humans Hardwired to Lean to the Right While Kissing the World Over

Researchers suggest that, regardless of where we are from in the world, humans are hardwired to lean to the right when kissing a romantic partner. The findings could have wider implications for neuroscience and cognitive sciences, the researchers report.

Featured Neuroscience

·May 15, 2026·7 min read

Why 90% of Humans Share the Same Dominant Hand

Why is the human population overwhelmingly right-handed? A study solves this long-standing evolutionary puzzle by linking lateralized behavior directly to bipedalism and brain expansion.

This shows a head looking right, and one looking left.

Autism Featured Neuroscience

·May 5, 2025·4 min read

Why Lefties Are More Common in Autism and Dyslexia

A new meta-analysis highlights a strong connection between early-onset neurodevelopmental disorders with linguistic symptoms and left- or mixed-handedness. Disorders like dyslexia, autism, and schizophrenia were notably associated with higher rates of non-right-handedness, unlike later-onset conditions such as depression.

This shows a person writing with their left hand

Featured Neuroscience

·April 3, 2020·3 min read

World’s biggest study of left-handedness

A meta-analysis study reveals at least 10.6% of the world's population is left-handed.

Featured Genetics Neurology Neuroscience Open Neuroscience Articles Psychology

·September 5, 2019·4 min read

Genes associated with left-handedness linked with shape of the brain’s language regions

Four genetic regions have been identified as playing a role in left-handedness. Three of the four genes were associated with proteins involved in brain development and structure. Neuroimaging revealed those who were left-handed had increased functional connectivity between left and right language networks. Researchers also found correlations between the genetic regions associated with left-handedness and slightly reduced Parkinson's risk, but a slightly increased risk for schizophrenia.

This shows a person drawing with both hands.

Featured Neuroscience Psychology

·June 30, 2025·4 min read

Left-Handed Creativity Myth Debunked

The long-standing belief that left-handed people are more creative has been challenged by a new meta-analysis of over a century of research. After reviewing nearly 1,000 studies, researchers found no consistent advantage in creative thinking for lefties—in fact, right-handers slightly outperformed on some tests.