Susan E. Matthews

Breast-feeding keeps pounds off even decades later.

People's pupils react when they see other people they find attractive. But can this reaction reveal a person's sexuality?

What is the most bacteria-ridden item in your hotel room?

How does where you live affect your risk of a heart attack?

Do you eat less healthily when you sleep less?

School lunches are getting a health makeover.

When taken with calcium, vitamin D may help you live longer.

An awareness campaign by Susan G Komen for the Cure may have exaggerated the benefits of breast cancer screening.

A diabetes medication has surprising benefits for Alzheimer's patients.

Here's a guide to which vaccinations are recommended for kids and adults.

Avastin does not prolong life, nor does it improve quality of life, for breast cancer patients, a new review says.

Protection against sexually transmitted diseases could be more discrete and longer-lasting with a new gel that uses nanoparticles.

Taller people are more likely to die of cancer, and shorter people are more likely to die of heart problems, a new study says.

MRSA infections are decreasing inside and outside the hospital.

Exercising and maintaining a healthy weight reduces risk of breast cancer.

Eating dark chocolate may help improve brain function and memory.

Women with breast cancer with higher levels of vitamin D lived longer than women with lower levels, a new study finds.

What are the consequences of kids accidentally eating pot brownies?

Does taking fish oil keep your brain in good shape?

Teens who don't think they'll live past 35 are more likely to partake in risky behaviors.

Most U.S. kids don't sit in the required car seats that they ought to.

Women in their late 30s and 40s could get a blood test that predicts what age they'll enter menopause, researchers say.