Sodium benzoate is a common food preservative and additive used in many manufactured food products. Many people have an intolerance to sodium benzoate, especially children. Some research has shown that, among its possible symptoms, a sodium benzoate intolerance may be tied to hyperactivity in children.

Infrequent occurrences of eye twitching are normal, but eye twitching can also be a continuous or a frequent phenomenon, and can be a symptom of a neurological disorder, reports the American Psychiatric Association.

Chest pain is frightening because it can mean a heart attack or other physical problem. Fortunately, it doesn't always mean you have a serious health condition. You may just be under too much emotional stress, and your mental state is manifesting itself physically.

When a patient suffers from a depressive disorder, the symptoms can interfere with her life. Such symptoms might include sadness, changes in appetite and sleep patterns, fatigue and inappropriate guilt.

Ritalin, the brand name for methylphenidate, is a stimulant used to treat Attention deficit hyperactivity disorder. ADHD is a psychiatric disorder with symptoms of inattention, hyperactivity, and impulsivity.

Digestion occurs in three phases. First, nutrients receive secretions from the pancreas and gall bladder, which begin the breakdown of food into its individual components. Next, the small intestine uses its brush border enzymes to further hydrolyze the food into absorbable molecules.

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), published by the American Psychiatric Association defines a number of anxiety disorders, including Acute Stress Disorder, Panic Disorder, Generalized Anxiety Disorder (GAD), Agoraphobia, Social Anxiety Disorder (Social Phobia), Specific

Depression is an affective mental health disorder that involves feelings of sadness and depressed mood that can exist for several months or years.

Serotonin is a chemical produced by the body that acts on the nervous system and is associated with feelings of well-being. Researchers have extensively studied the role of serotonin in mood disorders such as anxiety and depression. According to a review published in the "Journal of Psychiatry and Neuroscience"

According to the Mayo Clinic, the average person produces up to two quarts of saliva every day. This seemingly large amount of liquid in the mouth goes unnoticed most of the time due to the constant swallowing that most people are able to accomplish.

When following a gluten-free diet, you have to be careful of sneaky ingredients. Worcestershire sauce often contains gluten, despite a lack of obvious labeling on the bottle.

Stress balls are an excellent way to relieve stress anywhere you are, at any time. Their portability allow you to take them with you to work or school or even out while you're running your daily errands.