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Thousands of tons of trash are being dumped at unauthorized waste sites across the Antelope Valley, lawsuits claim. Authorities say they are aware but have done little to stop it.

The number of Californians getting therapy via telemedicine has outpaced the number meeting with therapists in person. It marks a profound shift in the way mental healthcare is delivered.

New soil testing has found high levels of lead in the soil at wildfire-destroyed homes that federal cleanup crews had determined to be cleared of such contaminants, according to Los Angeles County.

Lawyers filing the lawsuit cite an investigation by The Times in which the testing of soil samples at homes found toxic heavy metals in excess of California standards.

Trump selects a Los Angeles holistic medicine doctor for surgeon general. A doctor friend wonders whether her views on medicine sync with those of Secretary of Health and Human Services Robert F. Kennedy Jr.

Republicans are scrambling to find creative ways to fulfill budget cuts they voted on without gutting Medicaid.

Indigenous tribes without federal recognition fiercely opposed a bill that would treat tribes with and without federal recognition differently during land development disputes, prompting the author to pull it.

Releases of sterile male mosquitoes in L.A. County drove down the pest population, studies found. But homeowners would need to pay to bring them to a wider area.

Autism researchers are facing massive cuts to federal funding, misinformation about the condition they study and worrisome policy announcements.

Alzheimer's is the nation's seventh-leading cause of death. How can a deeper understanding of a set of unremittingly cruel brain diseases not be a priority?