My 138-day battle with vertigo

vertigoshark0422

Spinning for months, a writer searches for a cause — and a cure.

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Earth Day around the globe

Earth Day around the globe

Global celebrations include a beauty pageant, mud costumes and a revised Apple logo.

Move over Meb: Oldest people to win the Boston marathon, climb Mt. Everest, fly in space

Move over Meb: Oldest people to win the Boston marathon, climb Mt. Everest, fly in space

At nearly 39, Meb Keflizhigi was the oldest runner in 84 years to win the Boston Marathon. Other feats of longevity you may not know.

Customized prostheses allow amputees to make personal statements

Customized prostheses allow amputees to make personal statements

Amputees make a statement with customized prosthetic legs.

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The international space station and its crew

The international space station and its crew

U.S. astronauts Rick Mastracchio and Michael Hopkins are among those in orbit.

Why do allergies wax and wane as we age?

Why do allergies wax and wane as we age?

Scientists look at clues in the environment, in the role of viruses — and in our minds.

At least two species of mammals lived for 23 million years

At least two species of mammals lived for 23 million years

Paleontologist’s list of enduring animals includes whale ancestors, marsupials, rodents and insectivores.

NASA ‘flying saucer’ is due to splash into Hawaiian waters

NASA ‘flying saucer’ is due to splash into Hawaiian waters

A spacecraft designed to land heavy loads and people on the surface of Mars will be tested over Kauai.

Will this year’s hurricane predictions be any better?

Will this year’s hurricane predictions be any better?

Last year, the early forecasts overestimated the number of named storms and hurricanes.

Might knitting offer long-term health benefits?

Might knitting offer long-term health benefits?

It’s not just about the pretty scarf. Research on how crafting supports motor skills and the mind.

The unsung heroes of medical care, honored

The unsung heroes of medical care, honored

A new documentary offers an in-depth look at the lives of five nurses.

Even over-the-counter pain relievers can be hazardous

Even over-the-counter pain relievers can be hazardous

Consumers should be careful about doses and about mixing painkillers with other drugs and with alcohol.

Chinese herb may help relieve rheumatoid arthritis

Chinese herb may help relieve rheumatoid arthritis

In a study, extract of thunder god vine eased pain and swelling as well as the drug methotrexate did.

Here’s a reason to avoid serious talks when you’re hungry

Here’s a reason to avoid serious talks when you’re hungry

A study finds that spouses were most unhappy with each other when blood-sugar levels drop, usually at night.

Did T. rex ever battle Triceratops?  And, if so, who won?

Did T. rex ever battle Triceratops?  And, if so, who won?

An expert answers these questions and more at a film festival at the National Museum of Natural History.

Wanna build a robot in 5 minutes?

Wanna build a robot in 5 minutes?

The third USA Science & Engineering Festival will give you a chance to try.

Parsley’s distant relative looks like a Dr. Seuss veggie

Parsley’s distant relative looks like a Dr. Seuss veggie

This llareta — more than 2,000 years old — is among the ancient living things featured in a new book.

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Vertigo: Source of the spinning

Vertigo: Source of the spinning

The inner ear is often the source of vertigo. There, tiny crystals of calcium, or otoconia, can detach and move freely through the semicircular canals. Movement causes otoconia to stimulate the motion-sensitive cupula, which sends false signals to the brain, creating vertigo.

Must we carry our adult child on our health policy?

Must we carry our adult child on our health policy?

Michelle Andrews answers reader questions about health care under the Affordable Care Act.

How a teen stowaway defied hypoxia, cold and long odds in jet’s wheel well

How a teen stowaway defied hypoxia, cold and long odds in jet’s wheel well

Experts question how the teen could have survived the 2,300-mile flight to Hawaii in sub-zero temperatures.

Duchenne muscular dystrophy drug on faster track

Duchenne muscular dystrophy drug on faster track

Updated FDA guidance follows months of internal deliberations, public campaigns by patient groups.

A heartbreaking Boston Marathon story you haven’t heard

A heartbreaking Boston Marathon story you haven’t heard

Virginia police officer will run today in place of his wife, who was killed by an alleged drunk driver as couple ran together

Children getting codeine in ER visits despite risks

The FDA last year issued its strictest warning about a rare risk for life-threatening complications or death.

Up to 32% of seafood imported to U.S. is caught illegally

Up to 32% of seafood imported to U.S. is caught illegally

Illegal fishing is a major concern because the world’s oceans can barely sustain legal seafood harvests.

Medicaid paid $12M for Illinois dead

Medicaid paid $12M for Illinois dead

Lawmakers seek reform as internal memo shows funds went to more than 2,000 people listed as dead.

Hawaii emerges as GMO battleground

Businesses object to moves made to regulate GMOs in the state, which is critical to U.S. corn-growing industry.

California farmers, cities to get more water

California farmers, cities to get more water

The Department of Water Resources said it is increasing water allotments from zero to 5 percent.

Easter delivery to space station lifts off just in time

A SpaceX rocket carries food, legs for ‘Robonaut’ and supplies for urgent repairs after a bevy of problems

Which athletes are the most fit?

Which athletes are the most fit?

It’s just about impossible to compare, but we still do

New procedure clones stem cells from adults

New procedure clones stem cells from adults

For the first time, scientists have created stem cell lines with identical DNA from two human adult males.

Checking baby poop color is important, and there’s an app for it

Hopkins physicians hope app will cut rates of devastating liver disease in newborns.

Earth-size, ‘Goldilocks’ planet in distant solar system

Earth-size, ‘Goldilocks’ planet in distant solar system

Kepler-186f, 500 light-years away, meets what researchers believe are two basic requirements for life.

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Confirmation of first potentially habitable earth-size planet

Confirmation of first potentially habitable earth-size planet

Data from the Kepler space telescope suggest that about a fifth of all sunlike stars in our galaxy are accompanied by habitable Earth-size planets. The Milky Way might be home to 25 billion rocky worlds with liquid water.

Hungry people are more aggressive with spouses, researchers say

Hungry people are more aggressive with spouses, researchers say

You lack self-control when you’re hungry and are most likely to take it out on an intimate partner.

FDA warns against common procedure to remove uterine fibroids

FDA warns against common procedure to remove uterine fibroids

The agency says the surgery risks spreading hidden cancers within a woman’s body.

Cancer-free or not, Valerie Harper has already beaten very long odds against rare cancer

Cancer-free or not, Valerie Harper has already beaten very long odds against rare cancer

Actress’s cancer usually proves fatal in three to six months.

Obama to challenge companies to boost solar power use

Obama to challenge companies to boost solar power use

Although solar power use is growing, it only makes up 1 percent of the nation’s electricity generation.

Trait by trait, plant scientists swiftly weed out bad seeds

Trait by trait, plant scientists swiftly weed out bad seeds

A wide variety of plant scientists embrace the cutting-edge technology of marker-assisted DNA selection.

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Monsanto’s new plant- breeding technique

Monsanto’s new plant- breeding technique

Scientists at Monsanto are using a novel technology that screens DNA to create elite crops.

Don Draper really should wear his seatbelt

Don Draper really should wear his seatbelt

The hard-living ‘Mad Men’ character could at least cut his chances of dying in a car crash

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Screening genes for better breeding

Screening genes for better breeding

Marker-assisted selection is a technique used by plant breeders to locate and assemble desirable traits — shaving years off the time needed to create a new commercial hybrid. This method works with genetic material native to a prospective plant and allows a much larger population to be screened than with conventional breeding.