Sodium is one of the major electrolytes, carefully maintained within a narrow normal range and necessary for proper functioning of your body’s systems. Low sodium levels, or hyponatremia, occur in a wide variety of medical disorders including cancer.

Thyroid stimulating hormone, usually abbreviated TSH, is manufactured by the pituitary gland. Release of TSH stimulates the thyroid to make T3 and T4, the hormones responsible for thyroid function. If the thyroid stops functioning, TSH levels rise as the body attempts to “force” the thyroid to produce hormones.

Bleeding from the gastrointestinal tract is a fairly common occurrence and a frequent cause of emergency room visits, according to the textbook "Harrison's Principles of Internal Medicine." Hematemesis is the term used to describe vomiting blood, while hematochezia refers to bleeding from the rectum.

Red blood cells are vital to your health and well-being, carrying oxygen to cells throughout your body and carbon dioxide away from them so that it can be expelled. A number of nutrients are involved in the production, maintenance and function of red blood cells.

The small veins in the legs can be damaged by disease, advanced age or trauma. The location of the injured veins is important in determining the cause. Identifying what produced the injury is the first step in prevention and treatment; failing to do so can potentially lead to serious and longterm complications.

Cortisol is a stress hormone produced by the adrenal glands. Overproduction of this hormone can lead to many problems including weight gain, muscle loss, nervous eating and anxiety. Herbs that naturally combat stress hormone production are known as adaptogens.

Gastrointestinal, or GI, bleeding means bleeding that begins in the gastrointestinal tract. MedlinePlus states that the amount of gastrointestinal bleeding can be undetectable, however, in some cases it can be extensive and dangerous to the life of the individual.

Your lipid profile is an overall assessment of your cardiac health. It consists of four numbers reflective of the amount of total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol and triglyceride levels of your blood.

Nattokinase is an enzyme that can be used to prevent blood clots that are associated with strokes and heart attacks. Heart disease is the No. 1 killer of Americans, while stroke is No. 3. Nattokinase is derived from the Japanese soy food called natto that somewhat resembles blue cheese.

Poor blood circulation in your hands is often a source of discomfort or pain when performing many everyday activities.

Breast enlargement pills contain a proprietary blend of ingredients that are specific to the manufacturer. With each ingredient comes the potential for side effects.

Vitamins play a significant role in many of the functions inside your body. Your cardiovascular health depends on your vitamin intake as well. Certain vitamins keep your blood vessels healthy by maintaining their pliability and reducing hardness.