Staying healthy
Learning Center
Sperm: How long do they live after ejaculation?
After ejaculation, the life span of sperm depends on the circumstances.
Invasive lobular carcinoma
Breast cancer that begins in the milk-producing glands of the breast is uncommon. Learn what sets lobular carcinoma apart from other breast cancer types.
How your brain works
Which part of your brain does what? Take a tour.
Exercise after pregnancy: How to get started
Exercising after pregnancy can give you the energy you need to care for your baby. Follow these strategies to stay safe and motivated.
Natural breast enhancement: Do supplements work?
Breast enhancement supplements haven't been proved effective and could cause side effects.
Pap smear: Do I need one if I'm a virgin?
Doctors recommend regular cervical cancer screening whether you've had sex or not.
Bacterial vaginosis
Learn about symptoms, treatments and prevention of this common vaginal condition.
Premenstrual dysphoric disorder: Different from PMS?
Extreme moodiness, intense sadness or marked irritability in the days before your period — along with your usual PMS symptoms — could be PMDD.
Hypothyroidism and infertility: Any connection?
For women, there's sometimes a link between having an underactive thyroid gland (hypothyroidism) and infertility.
Ovarian cysts
Many women have ovarian cysts at some time. Most are harmless, but some can cause serious symptoms. Know what symptoms to watch for.
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