Conversation starters, celebrity health reveals, healthy living hacks and medical cautions: Here's what you missed in Fox News Health this week

Brain training reduces dementia risk by 25% over 20 years, long-term study finds. Cognitive speed training shows lasting protection against Alzheimer's disease.

Australian researchers warn GLP-1 weight-loss drugs may cause scurvy, the historic "pirate disease," due to poor nutrition and vitamin C deficiency risks.

"Dawson's Creek" star James Van Der Beek's colon cancer battle highlights alarming rise in cases among younger adults. Learn the warning signs he missed.

Scientists discover aloe vera compound could offer breakthrough Alzheimer's treatment. Beta sitosterol shows promising results in computer simulations.

A Penn Medicine study challenges sound machine benefits, finding that "pink noise" disrupts deep sleep and REM cycles, while earplugs are proven more effective.

James van der Beek shared the overlooked warning sign of his stage 3 colon cancer and why early screening at 45 is crucial.

Obesity contributes to more than 10% of infection-related deaths and up to 11% could be prevented by addressing obesity, according to a study of 550,000 adults in Finland and the U.K.

In a new op-ed, The New York Times admits legalization may have gone too far, citing addiction, mental health risks and rising THC levels. Doctors weigh in on the issue.

FDA refuses Moderna's mRNA flu vaccine application, citing inadequate study design, as the company disputes decision, saying it contradicts prior FDA guidance.

Breakthrough research shows diabetes medicine metformin may reduce age-related vision loss by 37%. Liverpool study offers hope for AMD treatment.

Federal prescription drug platform TrumpRx aims to provide most-favored-nation pricing. Physicians discuss potential impact on drug affordability.

New Harvard study of 130,000+ people finds that drinking two to three cups of coffee daily cuts dementia risk by 18%. Caffeine appears key to brain protection benefits.

A new Stanford Medicine study reveals that colorblind men face 52% higher bladder cancer death risk because they can't see warning signs early enough.