As Earth Warms, California Fire Season Is Starting Earlier, Study Finds

Summertime fire activity is creeping into spring, and the balmier climate is a major driver, scientists said.

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Want to Be a Deep Sea Explorer? Don’t Worry, There’s Lots Left.

Researchers collected more than 43,000 records of dives and assessed the photos and videos to determine how much of the bottom has been seen by humans.

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Women with Postpartum Depression Experienced Brain Changes During Pregnancy, Study Finds

The research constitutes some of the first evidence that the condition is associated with modifications in the brain before childbirth.

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Aging Women’s Brain Mysteries Are Tested in Trio of Studies

Researchers identified a gene that seems to help slow brain aging in women, and studied links between hormone therapy, menopause and Alzheimer’s.

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In Mexico, Heat Waves Are Even Killing Younger Adults

It’s not the just the elderly. More than three-quarters of heat-related deaths in Mexico occurred among people younger than 35, researchers reported.

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