Health

Ask a bunch of people why they don't get enough physical activity and you're likely to hear: "I have no time."

Federal scientists have launched another test in human volunteers of a Zika vaccine. This one uses a more traditional approach than an experiment that started in August.

Since the mid-1800s, laughing gas been used for pain relief, but these days it's usually associated with a visit to the dentist.

In the early 20th century, women used laughing gas to ease the pain of labor, but its use declined in favor of more potent analgesia. Now a small band of midwives is helping to revive its use in the U.S.

One hospital in Rhode Island, South County Hospital in South Kingstown, has just added nitrous oxide, the formal name for laughing gas, to its menu of pain relief options for labor.

In Greensboro, N.C., Eyeisha Holt spends her days as a full-time child care worker at Head Start. But after a decade's work in early education she still earns only $11.50 an hour — barely enough, she says, to cover the basics as a single mom of two. So every weekday evening she heads to her second job, as a babysitter.

"Are you ready to go to bed?" she asks, as she oversees bath time for her 3-year-old daughter and another of her charges. For 25 hours a week, Holt cares for toddler twins, in addition to her daughter and teenage son.

The Justice Department is investigating the pricing practices of several generic drug manufacturers because the list prices of many older medications have risen in lockstep in recent years.

That investigation could lead to an antitrust lawsuit alleging price-fixing by the end of this year, according to a report by Bloomberg News. Bloomberg cited anonymous sources familiar with the probe.

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