Does Exercise Release Dopamine?

Dopamine is a neurotransmitter -- a molecule that neurons release to communicate with each other -- that is synthesized from the amino acid tyrosine.

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How Does Sweat Help to Maintain Body Temperature?

The human body perform countless chemical reactions that are essential for life every second. Many of these reactions can only be performed within a limited temperature range. As a result, humans have a variety of mechanisms to keep their body temperature within a constant range.

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Pregnant women at antenatal class

Signs & Symptoms Associated With True Contractions

Contractions of the uterus herald the first phase of labor. Contractions, also informally called "labor pains," are associated with gradual dilation of the cervix. Sometimes women may mistake other causes of abdominal pain for true contractions of the uterus. These other causes of pain are known as "false labor pains"

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Chest Cough While Pregnant

A "chest cough" is a type of cough in which congestion is present in the lungs. Pregnancy can be a state of decreased immune function and mothers-to-be are at risk for a number of infections. The worst of these is pneumonia, which can be fatal to mothers and their babies.

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The Effects of Hyperventilation on Breathing

Hyperventilation is defined as rapid breathing. The normal breathing rate is 14 to 18 breaths per minute. Carbon dioxide is the gas that normally regulates the rate of breathing. A rapid rate of breathing can occur normally after exercise.

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Capsules and pills

How Long Does It Take for an Allergy Medicine to Work?

Allergies are a reaction of the immune system to harmless substances. Allergies may cause nasal symptoms, hives, asthma or even anaphylaxis, a severe form of allergy that may be fatal. Most mild allergies can be controlled with simple, symptomatic treatments.

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Leg Pain In A Woman

Hip Pain in Adolescents

Hip pain is a common problem among teenagers. According to a 2005 study published in “Acta Paediatrica,” nearly 7 percent of adolescents experience hip pain. The causes of hip pain range from mild to serious. Adolescent hip pain is more common in females, smokers and teens who consume alcohol.

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What Causes Night Sweats in Teenagers?

Night sweats may be defined as excessive sweating while trying to sleep at night. Commonly, causes of night sweats are due to nonserious causes. However, in combination with other symptoms, night sweats could be due to something more serious, such as blood cancers, hormonal dysfunction and a variety of infections.

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Normal Progesterone Levels During Breastfeeding

Progesterone plays an important role during pregnancy. After delivery of the baby, the levels of this hormone begin to drop. Breastfeeding causes low levels of progesterone due to the effect of prolactin, which prevents ovulation. Thus, progesterone levels tend to be very low during this time.

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Does an Allergic Reaction From a Cat Produce a Rash?

According to the Humane Society of the United States, one third of American households have cats, and many families with cats have more than one. Millions of individuals have allergies to their domestic pets, and allergies are much more likely to occur in response to cats than to dogs.

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What Are the Causes of Mucus and Blood in a Child's Stool?

Blood and mucus in a child's stool can be alarming to parents. There are several causes of rectal bleeding, and doctors can determine the cause based on taking a careful history and an examination and through imaging and laboratory testing.

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Croup and Coughing in a 4-Year-Old

Croup, also called acute laryngotracheobronchitis, is a common upper airway infection in children. Croup can vary in severity from a mild cough to a severe obstruction of the airway.

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Allergies to Metal in Pierced Ears

Metal allergies can be evident in pierced ears or wherever skin comes into contact with metals, such as with watches, necklaces or other jewelry. This form of allergic reaction is called contact dermatitis, and is due to your body's reacting to impurities in metal products.

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Preschooler Eating a Bubble!

Gasping in Babies & Toddlers

Gasping behavior in infants and toddlers means that they aren't getting enough air. Many times, this indicates that the airway is obstructed. Gasping can indicate a number of serious conditions.

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Mixed Race Toddler Girl is Crying

Signs and Symptoms of a Fat Malabsorption in a Toddler

Fat malabsorption is an inability of the intestine to absorb fats. Fats are essential nutrients needed for energy and growth. A number of diseases of the intestine, liver and pancreas can lead to this condition. Toddlers can be severely affected by fat malabsorption due to their rapid rate of growth.

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High angle view of a group of people exercising in a step aerobics class

Lung Volume During Exercise

Lung volume increases by as much as 15 percent during exercise. To meet the metabolic demands of your body during exertion, your breathing becomes deeper and more rapid, delivering more oxygen to your bloodstream to meet the increased needs of your heart and muscle cells.

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Sore Muscles & Prednisone

Steroids, such as prednisone, have an important side effect in muscle deterioration. Associated with this are both acute and chronic steroid-induced myopathy. However, steroids also have powerful anti-inflammatory effects, and are therefore used in some autoimmune diseases that affect muscles.

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Benefits of Using BioPerine

Piperine, also known by its trademarked name, BioPerine, is an extract derived from black pepper, Piper Nigrum L, and long pepper, Piper longum L. Piperine is what gives peppers their spicy taste.

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Which Foods Have Sorbitol?

Sorbitol, also called glucitol, is a sugar-alcohol that is present in a wide variety of foods. Sorbitol is about 60 percent as sweet as sucrose and has a characteristic texture. Its flavor is similar to that of sucrose but it lacks the aftertaste of most other sugars. Sorbitol is found in a variety of natural fruits.

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