Claudia Kalb

Regina Benjamin, America's Surgeon General, discusses the difficulty of tackling childhood obesity—and the highest peak of Mount Kilimanjaro.

American innovations in food, transportation, and technology are threatening to supersize us all.

Celebrities and their maladies are a boon to public health. They put a well-known face to a medical condition and they give doctors (and medical reporters) an excuse to spotlight a disease and educate the public.

Spiritual and mental recovery aboard a Navy medical ship.

As we leave our families with heavy hearts, we know that millions in Haiti have even heavier hearts as they bear the burden of this tragedy both personally and as a country.I saw firsthand the destruction and loss of life and it is incredible.

The foreign doctors and nurses who have flown in to help Haiti are met with a decimated medical system. Luckily, they've been trained for that.

Couples who decide not to implant embryos often face a difficult choice—and limited options.

It's time for a stem-cell fist bump. Nine months after President Obama issued his executive order overturning Bush-era barriers to embryonic stem cell research, the NIH has approved 13 new human embryonic stem-cell lines for federally funded research.  More than 20 additional lines will be considered for approval at the end of this week and dozens more are on the runway for review.

My childhood classmate grew up to be the infamous astronaut stalker. What went wrong?

To combat both H1N1 and the lies and misperceptions about the disease, the government is going on an unprecedented multimedia information campaign.

They are shades of the rainbow—blues, yellows, reds, and greens—arranged in a luminous pattern of imperfect rectangles. They look like swatches of silk fabric.

A paralyzed businessman reflects on the risks and rewards of an eventual cure.

Children who watched the tragedy unfold are now on the brink of adulthood.

The CDC says health-care workers should be among the first in line to receive the swine-flu (H1N1) vaccine, which the government hopes will be available by mid-October.

Scientists are closing in on the genes linked to autism. So why is Ari Ne'eman so worried?

Can painful, unwanted memories be altered or even eradicated? That's the provocative question being raised by the emerging science of forgetting.

Three percent of D.C. residents are living with HIV or AIDS. Three quarters of them are black.

Hope—and anxiety—run high as the first clinical trial of embryonic-stem-cell therapy begins this summer.

Scientists cheer as President Obama ends restrictions on research. What the move means for your future.

Each year thousands of families experience stillbirth. As science seeks causes, parents use photography to honor their babies and cope with their grief.

A unique volunteer group helps parents preserve precious images of babies that are stillborn or expected to die soon after birth.

A slick new promotional campaign reminds women in their 20s and 30s that their biological clocks are ticking.

A top exec quits a major autism group because she doesn't think vaccines cause the disorder.

Recruiting starts next month for the largest long-term study of children's health ever conducted in the U.S.

The author of a new book about autism says exactly what he thinks about vaccines and other hot topics.

A new study raises questions about the risks to young children.

The mother of an autistic son reacts to John McCain's recent pledge to help families like hers. Was it just rhetoric?

Why some kids grow up to be targets.

If doctors aren't making wise choices about their health, what kind of message are they sending their patients?

One study found that 74 percent of teens dramatically overestimate their ability to manage their asthma.