Health Article description.The nervous system includes the brain, the spinal cord, and all the nerves in the body. Nerves carry information through the spinal cord to the brain about what is happening inside and outside of the body. The brain processes the information and sends messages back through the nerves that control how muscles and other...

Health Article description.Influenza (flu) vaccine can save lives. Sometimes people choose not to get the vaccine because of incorrect information they've heard about the vaccine or the flu. With conflicting messages out there, it can be hard to know what's true and what to...

Health Article description.Nerves carry messages back and forth from your low back and legs. By testing how well your muscles, reflexes, and sense of feeling are working, your doctor can tell whether there is pressure on a nerve root in your spine. Your doctor often can also...

Health Article description.Preschool-age children develop a sense of independence by practicing skills and doing things for themselves, such as getting dressed or brushing their teeth. Children who are not allowed to perform tasks on their own get the message that they are...

Health Article description.Narcolepsy is a sleep disorder that mixes the nervous system's messages about when to sleep and when to be awake. Narcolepsy usually starts during the teen years or early adulthood and continues throughout life. Narcolepsy may cause: Sudden sleep attacks. These may occur at any time during any type of activity, such as...

Health Article description.Cognition is the ability to think, learn, and remember. It develops as your baby grows. Your baby is born with around 100 billion brain cells (neurons). These cells form connections with each other called synapses. These connections carry messages...

Health Article description.Calcium is a mineral the body needs to make bones and teeth, transmit nerve messages, tighten (contract) muscles, and help the blood to clot and the heart to function properly. Calcium is found in milk and milk products (including yogurt and cheese); in certain leafy, green vegetables (broccoli, bok choy, kale); in...

Health Article description.The spinal cord is a soft bundle of nerves that extends from the base of the brain to the lower back. It runs through the spinal canal, which is protected by the bones of the spine (vertebrae). Messages between the brain and the nerve roots travel up and down the spinal cord. This makes it possible for the brain and...

Health Article description.Neurotransmitters are chemicals produced by the nerve cells in the brain that send messages back and forth across the space between the cells (synapse). When the normal balance of these neurotransmitters is upset, headache, depression, or other mental health problems may develop. Some of the neurotransmitters that are...

Health Article description.A spinal cord injury is damage to the spinal cord that can interfere with how messages travel back and forth between the brain and the rest of the body. An injury to the spinal cord can result in complete or partial loss of movement (paralysis) and feeling and complete or partial loss of bladder and bowel function. The...

Health Article description.Includes info on hearing loss. Discusses causes and symptoms like tinnitus, muffled hearing, and vertigo. Covers exams and tests used to diagnose hearing loss. Discusses treatment with medicine, hearing aids, or cochlear implant.

Health Article description.Bullying is acting in ways that scare or harm another person. Kids who bully usually pick on someone who is weaker or more alone, and they repeat the actions over and over. Bullying can happen at school, on the bus, in the neighborhood, by text, or online. Using technology to bully is called cyberbullying. The types of...

Health Article description.A spinal cord injury (SCI) is damage to the spinal cord. The spinal cord is a soft bundle of nerves that goes from the base of the brain to the lower back. It runs through the spinal canal, a tunnel formed by holes in the bones of the spine. The...

Health Article description.Includes info on dizziness, lightheadedness, and vertigo. Also has links to multiple sclerosis, Parkinson's disease, and Alzheimer's disease as well as information on diabetic neuropathy and seizures.

Health Article description.Jeremy Read more about how Jeremy avoids getting discouraged by setbacks. "It made me feel pretty good, especially when people started making comments about noticing the changes I would make. You just feed off the positive energy." Jeremy grew up...

Health Article description.Covers how your thoughts can affect your mental and physical health. Offers tips on positive thinking, including having positive expectations.

Health Article description.Discusses blood glucose tests used to diagnose diabetes and prediabetes. Covers types of tests, including fasting blood sugar, 2-hour postprandial blood sugar, random blood sugar, and oral glucose tolerance. Discusses how to prepare and what results mean.