References
16 September 2014, 07:35 PM ET
Restless legs syndrome (RLS) is a disorder characterized by an intense urge to move the legs. The impulse can be so strong that an individual is unable to resist.
16 September 2014, 05:53 PM ET
On the Big Island of Hawaii, one of the world's most active volcanoes has been spewing lava since 1983.
16 September 2014, 11:41 AM ET
Properties, sources and uses of the element silicon.
15 September 2014, 09:04 PM ET
Chronic fatigue syndrome is a puzzling medical condition characterized by extreme fatigue, impaired memory, joint and muscle pain, tender lymph nodes, and sore throat.
12 September 2014, 06:39 PM ET
Lupus is a chronic disorder in which the immune system attacks otherwise healthy cells. It is characterized by fatigue, joint pain and rashes.
12 September 2014, 06:28 PM ET
Working out while pregnant is safe, and has benefits for both the mother and baby.
12 September 2014, 01:20 AM ET
Structural engineering deals with the framework of structures, making sure they can withstand the stresses of their environment and remain safe, stable and secure.
12 September 2014, 12:48 AM ET
Classical mechanics is the mathematical study of the motion of everyday objects and the forces that affect them.
11 September 2014, 07:41 PM ET
Also called ‘gouty arthritis,’ gout is a painful form of arthritis caused by too much uric acid in the blood. Learn about causes, symptoms and treatment.
09 September 2014, 05:44 PM ET
Carpal tunnel syndrome is a nerve-related condition that causes pain and numbness in the wrists and hands.
09 September 2014, 01:41 AM ET
Nuclear engineering deals with harnessing the energy released from nuclear reactions. Nuclear engineers work in power production, weapons manufacturing, food production, medical technology and other fields.
05 September 2014, 06:36 PM ET
Forecasts have improved, but challenges remain.
05 September 2014, 05:47 PM ET
Type 2 diabetes is the most common form of diabetes, a condition characterized by high blood sugar levels.
04 September 2014, 08:16 PM ET
Aerospace engineering deals with designing and building machines that fly. There are two main specialties: aeronautical engineering and astronautical engineering.
04 September 2014, 03:43 PM ET
Tooth sensitivity is a common dental problem that involves discomfort or pain in teeth when encountering certain substances and temperatures.
04 September 2014, 02:01 PM ET
Properties, sources and uses of the element palladium.
03 September 2014, 05:48 PM ET
Lyme disease is a bacterial infection caused by the bite of a tick. Early symptoms include a bull's-eye rash.
03 September 2014, 05:36 PM ET
Panic disorder is marked by sudden and repeated bouts of extreme fear that can last for several minutes or even longer. These episodes are referred to as panic attacks.
02 September 2014, 02:44 AM ET
Until recently, no one had ever seen the moving rocks at Racetrack Playa, but a new video shows the stones creeping across the desert.
29 August 2014, 07:18 PM ET
Dry, inflamed, itchy skin is a sign of the skin disorder eczema.
29 August 2014, 06:18 PM ET
Nail fungus, also medically known as onychomycosis, is a chronic fungal infection of the fingernails and/or toenails.
29 August 2014, 06:02 PM ET
Learn about keeping your kids’ teeth healthy and strong from infancy on and setting them up for a lifetime of healthy teeth and good dental hygiene practices.
28 August 2014, 11:59 PM ET
Civil engineering is the design and construction of public works, such as dams, bridges and other large infrastructure projects.
28 August 2014, 10:41 PM ET
Rosacea is a chronic disease characterized by cyclical flare-ups of redness and pimples around the face.
28 August 2014, 10:32 PM ET
Lobotomy is a neurosurgical operation that involves severing connections in the brain's prefrontal lobe.
28 August 2014, 10:23 PM ET
Gingivitis and periodontitis, two types of gum disease, are fairly common, but can be stopped or their symptoms lessened with effective care.
28 August 2014, 10:12 PM ET
People who experience social anxiety disorder are highly apprehensive in social settings, more so than the occasional case of nerves some may experience in everyday encounters.
27 August 2014, 08:12 PM ET
Post-traumatic stress disorder (PTSD) can occur after a person experiences a traumatic event, such military combat, a natural disaster, or a crisis such as 9/11.
27 August 2014, 04:38 PM ET
Chickenpox is a contagious disease characterized by many itchy, red bumps all over the body. Later in life, adults can develop a similar condition called shingles.
27 August 2014, 04:19 PM ET
People who experience generalized anxiety disorder (GAD) exhibit excessive anxiety and worry about multiple events or activities most days of the week.
26 August 2014, 10:48 PM ET
Electrical engineering is the branch of engineering that deals with the technology of electricity, including circuitry, power generation, machine control and communications.
26 August 2014, 08:48 PM ET
Autism spectrum disorder affects a person's ability to communicate, interact with others and behave appropriately in social situations.