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Daredevil climber's brain shows no fear during extreme stunts: Experts reveal why

In a death-defying feat, Alex Honnold of the U.S. scaled Taipei 101 in Taiwan with no ropes or support. Scientists reveal how his fearless brain is different from other brains.

Alzheimer’s risk tied to how the body handles sugar after eating, study finds

Genetic study reveals that people who have elevated blood glucose two hours after eating face significantly higher Alzheimer's disease risk. University of Liverpool researchers analyzed data.

Red light therapy could boost brain health in certain groups, new research suggests

Red light therapy could protect football players from brain damage, a new study suggests. Treatment reduced inflammation in athletes with head impacts.

Biden DHS's purchase of weapon linked to Havana Syndrome attacks leads House Republicans to demand answers

The Biden administration purchased suspected "Havana Syndrome" weapon with Russian components. House Republicans demand answers about mysterious device.

Jay Leno rejects Hollywood pressure to ‘get a girlfriend’ and stays devoted to wife with dementia

Comedian Jay Leno reveals Hollywood's shocking reaction to him caring for wife Mavis during her dementia battle. People suggest he should get a girlfriend instead.

Forcing an early wake-up time could harm your health, sleep doctors warn

Experts say forcing a 6 a.m. wake-up isn’t healthy for everyone. Your chronotype affects sleep quality, mood and health more than waking early.

Missing sleep may take a hidden toll on your brain and longevity, research reveals

New research reveals poor sleep shortens life more than diet or exercise. Psychiatrist Dr. Daniel Amen shares what happens to the brain with inadequate sleep.

Study reveals why chewing gum might actually help with focus and stress relief

Brain imaging studies shed light on why humans have chewed gum for 8,000 years with research showing chewing activates regions tied to attention and stress regulation.

Your sleep and activity patterns may reveal hidden brain health risk, study suggests

A new study finds that sleep timing is linked to dementia risk, as people with weak circadian rhythms face a 2.5 times higher risk of developing cognitive decline.

5 celebrities who went public with alarming health diagnoses in 2025

Celebrity health battles dominated 2025 as stars faced serious diagnoses, from brain aneurysms to cancer. Kim Kardashian, Dave Coulier and others shared struggles.