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·August 28, 2021·5 min read

Dunbar’s Number: Why the Theory That Humans Can Only Maintain 150 Friendships Has Withstood 30 Years of Scrutiny

Thirty years ago, Robin Dunbar theorized humans can maintain a friendship group of 150 people, with five intimate friendships. Despite many attempts to challenge the theory, Dunbar's Number has stood the test of time. Backed by neuroscience and statistics, Robin Dunbar explains why his theory still prevails.

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·March 3, 2020·4 min read

Ultrasound waves focused on prefrontal cortex elevate mood and change brain connectivity

Transcranial focused ultrasound (tFUS) can help elevate mood and decrease activity in brain networks associated with psychiatric disorders when directed at the ventrolateral prefrontal cortex.

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·April 21, 2016·5 min read

Why It’s Hard To Fall Asleep Somewhere New

Researchers report one brain hemisphere remains more awake than the other when we sleep somewhere new.

This shows plant leaves and brain scans from the study

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·January 3, 2021·4 min read

A First Look at How the Psychedelic Salvinorin A Works in the Brain

As with other psychedelics, salvinorin A increased activity across the brain. However, salvinorin A use resulted in more random and disconnected signaling in the default mode network, a brain network associated with relaxing and daydreaming.

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·May 21, 2026·11 min read

Long-Term Depression Reverses Brain Network Connectivity

How does the duration of major depressive disorder permanently reshape human brain wiring? A new neuroimaging study demonstrates that the length of time a person remains depressed fundamentally alters functional brain connectivity.

This image shows an MRI of the default mode network in the brain.

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·March 12, 2014·4 min read

Nicotine Withdrawal Weakens Brain Connections Tied to Self Control Over Cigarette Cravings

New research suggests the high relapse rate in smokers could be explained by diminished connectivity in key brain networks.

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·October 13, 2016·5 min read

New Technology Reveals Fetal Brain Activity

Researchers have developed a new approach to imaging the functional activity of fetal brains, allowing a better look at how functional brain networks develop.

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·December 12, 2019·4 min read

Experts review evidence yoga is good for the brain

Yoga has a positive effect on the structure and function of key brain areas associated with memory. Findings provide evidence that yoga may hold promise in mitigating age-related and neurodegenerative decline.

This image shows two pregnant women, one with an infant on her lap, the other without, signifying how having more than one child sparks neuroplasticity during pregnancy.

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·February 19, 2026·7 min read

Second Pregnancy Rewires Mom’s Brain for Multi-Child Parenting

One and done? Not for your neurons. Scientists have discovered that a second pregnancy leaves its own unique mark on the brain, specifically tuning it for the chaos of multi-child parenting.

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·September 13, 2019·3 min read

Drinking tea improves brain health

Older people who drink tea at least four times a week have better brain efficiency than those who don't, a new neuroimaging study reveals. Drinking tea is associated with better cognitive function in older people. Researchers report the study provides evidence that tea consumption has protective effects against age-related decline in brain organization.

Featured Neurology

·May 16, 2016·3 min read

Regular Exercise at Any Age Could Stave Off Alzheimer’s

According to researchers, regular exercise at any age can help to reduce aterial stiffness and could help to provide some protection against Alzheimer's disease.

Featured Neuroscience Psychology

·May 16, 2018·4 min read

Our Brains Are Obsessed with Being Social

Researchers report the temporoparietal junction and medial prefrontal cortex experience increased connectivity during rest following encoding new social information.