Health

No joke: Denmark to cut kids off from laughing gas

Denmark plans to ban sales of laughing gas to minors to prevent them from using the substance—which is used for making whipped cream or filling balloons—to get high, officials said Tuesday.

Medical research

In fighting gut infections, nervous system is key, team finds

The peaceful and delicate co-existence of friendly gut bacteria and the immune system relies on highly coordinated information exchange between immune system cells and certain cells lining the intestine. Until now, scientists ...

Arthritis & Rheumatism

Peripheral nervous system events not common in lupus

(HealthDay)—Peripheral nervous system (PNS) disease is a component of systemic lupus erythematosus (SLE) disease activity and has a significant negative impact on health-related quality of life, according to a study published ...

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Nervous system

The nervous system is a network of specialized cells that communicate information about an organism's surroundings and itself. It processes this information and causes reactions in other parts of the body. It is composed of neurons and other specialized cells called glial cells,(plural form glia), that aid in the function of the neurons. The nervous system is divided broadly into two categories: the peripheral nervous system and the central nervous system. Neurons generate and conduct impulses between and within the two systems. The peripheral nervous system is composed of sensory neurons and the neurons that connect them to the nerve cord, spinal cord and brain, which make up the central nervous system. In response to stimuli, sensory neurons generate and propagate signals to the central nervous system which then processes and conducts signals back to the muscles and glands. The neurons of the nervous systems of animals are interconnected in complex arrangements and use electrochemical signals and neurotransmitters to transmit impulses from one neuron to the next. The interaction of the different neurons form neural circuits regulate an organism's perception of the world and what is going on with its body, thus regulating its behavior. Nervous systems are found in many multicellular animals but differ greatly in complexity between species.

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