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Evidence has ping-ponged over the decades on the effects of hormone therapy on a woman's arteries. The latest study suggests a brief stint on hormones might be helpful — if given at the right time.

In engineering the cell, researchers paired away nearly all genes that weren't essential to life. It might eventually serve as a basic framework for different sorts of cellular factories, they say.

Every year, little clusters of Nipah virus break out in Bangladesh. And it wasn't from the usual cause — drinking raw sap from date palm trees. So what's up?

The demands: a U.N. apology for bringing the disease to the island, reparations for victims, repairs to the water system. Meanwhile, a study shows the toll is far worse than previously thought.

At approximately 3:30pm a bomb threat was called in to San Diego State University. After SDSU Police and bomb-sniffing dogs were called in, an all clear was given at 5:35pm.

Quitting abruptly is more effective, a study finds, even for people who'd rather phase it out gradually.

The 2016 Teacher of the Year in that state decided it was about time the people who write the laws that affect schools actually see the inside of a classroom.

Nancy Reagan finds her final resting place on a hilltop at the California ranch beside the grave of her husband, President Ronald Reagan. Thousands paid their respects this week as her casket was on public display at her husband's presidential library.

Getting an accurate diagnosis is a big hurdle in the current outbreak of Zika virus. There are three kinds of tests for Zika, and each has problems. Scientists are working hard to improve diagnosis.

"Being a woman over 50 in Hollywood I could commit any crime with impunity, because I'm completely invisible," says actress Annabelle Gurwitch. Her new book is called I See You Made an Effort.