Nervous System

The nervous system is an organ system containing a network of specialized cells called neurons that coordinate the actions of an animal and transmit signals between different parts of its body. In most animals the nervous system consists of two parts, central and peripheral. The central nervous system contains the brain and spinal cord.

What is the Nervous System?

The nervous system is a complex network of neurons and cells that carry messages to and from the brain and spinal cord to various parts of the body.

Pathology of the Nervous System

Bioelectronic Medicine: Hacking Nervous System Signals for Therapeutic Benefits

Function of the Nervous System

Development of the Nervous System

What are Schwann Cells?

The Impact of Hormones on the Nervous System

Latest Nervous System News and Research

New study focuses on starving bacteria to prevent Lyme disease

Triggered by a near painless tick bite, Lyme disease causes severe pain and inflammation for more than 475,000 people in the U.S annually, according to the Centers for Disease Control.

13 Aug 2026

Common e-cigarette flavorant may disrupt normal embryo development

Vanillin, a common flavoring chemical in e-cigarettes, may disrupt the normal development of embryos in pregnant women who vape, according to a study published today (Thursday) in Human Reproduction, one of the world's leading reproductive medicine journals.

13 Aug 2026

Your social life may leave a mark on how fast you age

Positive social experiences were associated with longer survival, while childhood adversity predicted shorter survival in a 1,309-person longitudinal cohort followed for nearly 15 years. Epigenetic aging, particularly GrimAge2, emerged as the strongest potential pathway linking social experiences with mortality risk.

12 Aug 2026

Swimming sends wrist-worn heart rate monitors off track

Researchers created an open-access dataset comparing two wrist-worn heart rate monitors with a chest-strap reference during dry-land exercise and swimming. Both smartwatches performed substantially worse underwater, highlighting the challenges water poses to optical heart rate monitoring and providing a resource for future research on aquatic wearables.

12 Aug 2026

Later-life estrogen therapy associated with lower risk of developing dementia

Use of hormone therapy later in life was associated with lower risk of developing dementia, according to a study published August 12, 2026, in Neurology, the medical journal of the American Academy of Neurology.

12 Aug 2026

Folic acid relies on vitamin A pathway to prevent birth defects

For decades, we've known that folic acid can help prevent serious birth defects of the brain and spinal cord, but we haven't fully understood how it does it.

11 Aug 2026

Scientists create single-cell atlas of spinal neurons involved in motor coordination

Scientists at St. Jude Children's Research Hospital created a single-cell atlas of a key class of spinal neurons involved in motor coordination. From that resource, they identified a small subgroup of interneurons associated with the speed of rhythmic movements such as walking.

10 Aug 2026

Study reveals how wind helps animals track hidden odors

Humans trust dogs to help find missing people and bees to pollinate their crops. But scientists still don't fully understand how these animals use their extraordinary sense of smell to locate the source of an odor.

10 Aug 2026

Natural hormone activates brain-to-liver signaling pathway to suppress liver inflammation

Researchers at McMaster University have discovered that a naturally occurring hormone best known for suppressing appetite and promoting weight loss also helps protect the liver from inflammation through a previously unknown signalling pathway, opening new possibilities for treating advanced fatty liver disease.

10 Aug 2026

Targeting small group of brain cells may reduce opioid addiction risk

Researchers at Duke University School of Medicine are investigating how to keep opioids' pain-relieving benefits while reducing their addictive potential. In a study published in Nature, they report a step toward that goal.

7 Aug 2026

Piezo ion channels: Key regulators of digestive health and disease

Mechanosensitive Piezo ion channels, particularly Piezo1 and Piezo2, are gaining recognition as central regulators of digestive system physiology and disease.

7 Aug 2026

Disrupted RNA methylation pathway accelerates Alzheimer’s and Parkinson’s risks

A growing understanding of RNA biology is reshaping how scientists view the relationship between environmental toxicants, brain development, and neurodegenerative disease.

7 Aug 2026

Multi-omics research uncovers new therapeutic targets for Fabry disease

A comprehensive review is shedding new light on Fabry disease, a rare inherited disorder that can progressively damage multiple organs and significantly affect quality of life.

6 Aug 2026

Wearable sensor technology detects physical patterns linked to mental distress

Researchers have shown that measurements taken from a person's fingertip could help identify physical patterns associated with stress, anxiety and depression.

6 Aug 2026

Live tracking reveals how robotic surgery impacts surgeon stress

Robot-assisted surgery (RAS) is one of the most advanced tools in modern medicine. These systems give surgeons extreme precision, allowing procedures to be performed through small incisions that minimize both pain and recovery time.

6 Aug 2026

Nerve-tumor interactions emerge as a transformative frontier in oncology

A new review article highlights a rapidly emerging frontier in oncology: the dynamic and influential relationship between nerves and tumors.

6 Aug 2026

Study reveals treatment gaps for atypical Alzheimer's disease patients

Many people with less common forms of Alzheimer's disease may not qualify for newer anti-amyloid treatments designed to slow the disease, according to a study published August 5, 2026, in Neurology®, the medical journal of the American Academy of Neurology.

5 Aug 2026

Neural stem cells split early into distinct neuron lineages

The cerebral cortex is densely packed with different nerve cells that enable us to perceive, think and act. Yet how these cell types arise while the brain develops is still not fully understood.

5 Aug 2026

Nerve-blocking therapy improves growth plate repair in injured bones

With the support of National Institutes of Health funding, Johns Hopkins Medicine investigators, led by pathologist Aaron W. James, M.D., Ph.D., previously discovered that sensory neurons in skeletal tissue are constantly sensing their environment and are quick to respond to injuries.

5 Aug 2026

KCNE gene family emerges as a promising target for future precision medicine

A growing understanding of the KCNE gene family is reshaping how scientists view the regulation of electrical signaling across the human body, highlighting its essential role in maintaining normal physiological function and its connection to a wide range of diseases.

5 Aug 2026