Susan E. Matthews

Do you eat less healthily when you sleep less?

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

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

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

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

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

MRSA infections are decreasing inside and outside the hospital.

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

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

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

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

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

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

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

Eating dark chocolate may help improve brain function and memory.

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

What are the consequences of kids accidentally eating pot brownies?

School lunches are getting a health makeover.

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

Does taking fish oil keep your brain in good shape?

Breast-feeding keeps pounds off even decades later.

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