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Ragweed and other weeds such as curly dock, lambs quarters, pigweed, plantain, sheep sorrel and sagebrush are some of the most prolific producers of pollen allergens

Innate immunity is the process by which white blood cells and other parts of the immune system sense and respond to potential infections by causing an inflammation.

Molds are microscopic organisms that play an important role in the breakdown of plant and animal matter.

A pesticide is any substance used to kill, repel, or control certain forms of plant or animal life that are considered to be pests.

Reproductive health refers to the diseases, disorders and conditions that affect the functioning of the male and female reproductive systems during all stages of life.

Radon is a colorless, odorless radioactive gas. It comes from the natural decay of uranium or thorium found in nearly all soils.

Hazardous wastes are discarded materials with properties that make them potentially harmful to human health or the environment.

Sudden cardiac arrest is an emergency. A person having sudden cardiac arrest needs to be treated with a defibrillator to send an electric shock to the heart right away to restore normal heart rhythm. Use of automated external defibrillators and CPR can be performed by bystanders. If you survive sudden cardiac arrest, you’ll likely be admitted to the hospital for ongoing care and treatment.

Ventricular fibrillation, a type of arrhythmia, causes most sudden cardiac arrests. Other problems with the heart's electrical system, including diseases or conditions that can cause the electrical problems—such as coronary heart disease, physical stress, certain inherited disorders, and structural changes in the heart—also can lead to sudden cardiac arrest.

Nearly all diseases result from a complex interaction between an individual’s genetic make-up and the environmental agents that he or she is exposed to.