Fitness basics
Learning Center
Fallopian tubes: Is pregnancy possible with only one?
Pregnancy may be possible with one fallopian tube.
Breast cancer staging
Breast cancer staging helps your doctor select the most appropriate treatments.
Robotic hysterectomy
Robotic hysterectomy is a minimally invasive surgery to remove the uterus.
Lack of sleep: Can it make you sick?
Lack of sleep can affect your immune system. Here's what you need to know.
What is thirdhand smoke, and why is it a concern?
Tobacco smoke creates toxic residue that clings to walls, carpets, clothes and other surfaces.
Tinnitus causes: Could my antidepressant be the culprit?
Ringing in the ears, also known as tinnitus, has many possible causes, such as taking antidepressants.
Rheumatoid arthritis: Can it affect the eyes?
Although rheumatoid arthritis is primarily a joint disease, it occasionally affects the eyes.
Testosterone therapy in women: Does it boost sex drive?
This type of hormonal therapy may boost sex drive for some women, but its long-term safety is unclear.
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
Triple X syndrome
Females with this genetic disorder have three X chromosomes instead of two. Symptoms can be mild or include developmental delays and learning disabilities.