Scientific studies demonstrate that two natural, plant-derived remedies—butterbur and rosmarinic acid—effectively relieve nasal congestion and other symptoms brought on by seasonal and year-round allergies, without the side effects associated with allergy drugs.

Yearly blood screening is an essential part of any strategy to maintain optimal health and prevent disease. Here we present the "top 10" blood tests that all health-conscious adults should undergo to avert common, life-threatening health problems before they occur.

Most heart disease is hidden and unsuspected. If you rely on standard cholesterol tests to predict your risk of heart attack, you are gambling with your life. Learn how blood tests for various lipoproteins can help pinpoint your cardiac risk—and perhaps save your life.

By the age of 65, one third of Americans suffer from cataracts, macular degeneration, and other preventable vision problems. Find out how managing key risk factors and utilizing nutrients that support eye health can help you preserve healthy vision for a lifetime.

Conventional medicine continues to ignore critical cardiac risk factors, thus fueling America's epidemic of deadly vascular diseases. For example, elevated fibrinogen, a protein produced by the liver, is directly linked to increased risk for heart attack, stroke, and even cancer. A new study in the Journal of the American Medical Association validates the warning Life Extension issued 10 years ago about the lethal dangers of excess fibrinogen.

Resveratrol extends life span in vertebrate; garlic improves impaired endothelial function; CoQ10 protects against amyloid beta peptides; green tea may prevent skin cancer; weight, inactivity tied to women's cardiovascular risk; C-reactive protein may predict lung cancer risk; omega-3 fatty acids boost bone health.

Soy isoflavones may help attenuate the risk and progression of a variety of cancers.

Mark Hyman, MD, on how nutrigenomics can help people lose weight automatically.