ALS, largely brought to light by baseball legend Lou Gehrig’s diagnosis in 1939, is a neurodegenerative disorder for which the cause and cure remain elusive.

PCOS is the most common hormonal disorder in women of child-bearing age, affecting around 6 million women and girls in the United States.

About 9 percent of American children have attention-deficit/hyperactivity disorder (ADHD), and one-third of those will continue to have it in adulthood.

This powerful antioxidant tends to be overlooked, but its list of health benefits is long and profound.

Peripheral neuropathy, affecting about 30 million Americans, damages nerves outside the brain and spinal cord, primarily in the feet and hands.

Postural orthostatic tachycardia syndrome is a condition that causes rapid heart rate and affects between 1 and 3 million Americans—mainly premenopausal women.

Age-related macular degeneration is the most common cause of blindness in developed countries, accounting for 8.7 percent of all types of blindness worldwide.

Graves’ disease affects roughly one in 100 Americans and is the leading cause of overactive thyroid in the United States.

Most people will experience hemorrhoidal symptoms sometime in their lives. Learn about what you can do to lower your risk or treat hemorrhoids if they occur.