Nutrition basics
Learning Center
Primary immunodeficiency
Frequent infections could mean you have an immune system disorder. The conditions in this category are usually caused by genetic changes.
Solid foods: How to get your baby started
Follow these tips for starting your baby on solid foods.
Female orgasm: No climax with vaginal penetration?
Not all women have orgasms with vaginal penetration during sex. Most women need stimulation of the clitoris to climax.
Kratom: Unsafe and ineffective
Users claim kratom lifts mood and boosts energy, but there are many safety issues and questions about whether it works. Learn more before trying it.
Overdue pregnancy: What to do when baby's overdue
Past your due date? Understand why a pregnancy might be overdue and what's next.
Video: HSG test for female infertility
Video animation shows the HSG test — an X-ray study to identify causes of female infertility.
Rheumatic fever
Learn about this complication of strep throat and scarlet fever and what you can do to prevent it.
Zinc for colds: The final word?
Everyone's heard of taking zinc for colds. But does it really work?
Does prickly pear cactus have health benefits?
Have you heard about prickly pear cactus? Find out about some surprising health benefits of this versatile plant.
Diet soda: How much is too much?
Diet soda may help you cut calories, but other low-calorie options abound.
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