It has been more than 40 years since singer/songwriter Woody Guthrie died of Huntington's Disease. He had been misdiagnosed for years—he'd even been labeled an alcoholic. Since that time, much as been learned about HD.
True or false: Shivering is one way the body produces heat.
We can fight off an infectious disease in one of two ways, by catching and surviving the disease or by getting a vaccine, which prevents us from catching it.
Find out how much you know about the causes and treatment of impotence.
A pregnant woman passes antibodies to her unborn baby through the placenta to protect against certain diseases. How long does this natural immunity last?
A surprisingly large number of American teenagers experiment with intoxicating inhalants, resulting in an untold number of deaths. Find out more about inhalant abuse by taking this quiz.
Answer this one: How far in advance of your overseas trip should you visit your doctor for vaccinations?
Arthritis is usually thought of as a disease that occurs later in life, but one child in every thousand develops a juvenile form of this illness. Take this quiz to learn more.
Answer this one: How much blood do your kidneys filter daily?
Kidney stones are one of the most common problems of the urinary tract—and one of the most painful disorders, period. How much do you know about kidney stones? Try your hand at the following quiz.
Is your snack bowl ready for Halloween? Before you fill it with marshmallow candy and chocolate bars, give a thought to good nutrition. It's possible to offer tasty but more nutritious treats this year.
Learning how to prevent knee injuries and treating them if they occur can help you stay active at work and play.
Older adults often suffer from depression needlessly because they fail to recognize its signs or are reluctant to talk with their doctor about it.
True or false: The most serious effects of lead exposure in children are vomiting and weight loss? Learn the answer by taking the Lead Safety Quiz.
Leukemia is a cancer of the bone marrow and blood. It is characterized by the uncontrolled production of blood cells.
Leukemia is a cancer of the blood. A person with leukemia produces abnormal white blood cells that grow out of control and crowd out the normal blood cells.
Lips are for ... talking and smooching and eating. Yes, they're important, but do you know how to take good care of your lips? Take this quiz to find out.
Americans are living longer than ever; by the middle of this century 600,000 of us will be centenarians. If you want to live longer and stay healthy longer, take this quiz from the Mayo Clinic to see how much you know.
People who need long-term care include those with a chronic illness or a physical handicap.
True or false: Antidepressants may cause low blood pressure?
Lupus is an autoimmune disorder that can range from mild to severe. It affects more than 1 million Americans, most of whom are women. Find out more about this autoimmune disease by taking the following quiz.
Answer this one: Although mammograms can identify tumors at a very early stage, the tumors may have been growing for how long by the time they show up on the X-ray?
Knowing about marijuana can help you recognize its use in others, so you can encourage them to seek treatment. Marijuana contains the flowers, stems, seeds, and leaves of the hemp plant Cannabis sativa. To learn more about marijuana, take this quiz.
Learn how to better manage your medications by taking this quiz.
Melanoma is a type of skin cancer. What increases your risk? What can you do to prevent it?
To keep your memory sharp, it's helpful to understand factors that affect memory for better or for worse.
Meningitis is an infection of the membranes that surround the brain and spinal cord. Both viruses and bacteria cause meningitis. Bacterial meningitis can be life-threatening; viral meningitis seldom is. Learn more about bacterial meningitis through this quiz.
Answer this one: Mercury in its elemental form is relatively nontoxic. In the environment, however, the elemental form of mercury is transformed into an organic form, which is easily absorbed by living things. This organic form, which builds up in the body, is called what?
Many households in the United States have someone who suffers from migraine headaches. Take this quiz to test your knowledge of migraines.
Dieting is temporary when it comes to losing weight. To keep weight off you actually have to change your lifestyle. Why is it so hard? For one thing, we may not know as much as we think. Take our quiz to test your knowledge.