Second trimester
Learning Center
Insomnia
This disorder can make it hard to fall asleep, hard to stay asleep or both, even though you have the chance for enough sleep. It can drain your energy.
Bone and joint problems associated with diabetes
If you have diabetes, you're at increased risk of various bone and joint disorders.
Bipolar disorder and alcoholism: Are they related?
These disorders often occur together, and they can be a dangerous mix. Having both conditions makes mood swings, depression, violence and suicide more likely.
Paraneoplastic syndromes of the nervous system
This group of conditions affects people who have cancer and occurs when parts of the immune system attack parts of the nervous system.
Hepatitis C: What happens in end-stage liver disease?
End-stage complications of hepatitis C include liver failure and liver cancer.
Canker sore
Canker sore — Learn about the causes, treatment and prevention of this painful mouth sore.
Iron deficiency anemia during pregnancy: Prevention tips
Are you getting enough iron? Know how to spot the symptoms of iron deficiency anemia during pregnancy and how to prevent it.
Plugged ears: What is the remedy?
Plugged ears are usually a mild, temporary problem. Learn about potential causes and treatments.
Fetal development: The 2nd trimester
Fetal development progresses rapidly in the second trimester. Check out the weekly changes.
Sudden death in young people: Heart problems often blamed
Sudden cardiac death in young people is rare. It's not the same as sudden cardiac arrest. Learn about the risk factors and causes and when screening is needed.
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