Humans

Last year, lawmakers legalized a medical procedure that combines DNA from three people. Now, fertility clinics can apply for a license to practice the technique "in certain, specific cases."

The last-minute regulation blocks state agencies from withholding federal funds from the family planning organization.

A powerful genetic engineering technique holds promise for wiping out diseases and improving agriculture. But the species-altering approach stirs anxiety about unintended consequences.

From Ben Franklin on, many have noted the distinctive smell asparagus gives urine. But most of us lack the ability to sniff out this malodorous effect, and not everyone may produce it.

In a year when venting spleen dominated much of public discourse, we consider the humble organ of that name. You can live without your spleen, but your immune system will be happier with it.

The court's decision regarding the estimated $1 billion settlement paves the way for the start of payouts to more than 20,000 former players over a degenerative brain disease.

Congressional leaders say they want a smooth transition from Obamacare. But insurance consultants say repealing the law before another plan is in place could jeopardize the insurance of millions.