A new study found something unexpected buried in the way senior dogs walk, and it points to trouble happening long before the obvious signs of cognitive decline appear.

Know how Alzheimer's diagnosis is becoming more accessible as an expert talks about blood tests that help detect Alzheimer’s.

In TODAY.com’s Expert Tip of the Day, NBC News medical journalist Dr. Akshay Syal explains the main trait he looks for when ...

The senior director of CALM Zoo in Bakersfield says the zoo's resident eagle was carefully evaluated before donating blood to ...

Predicting when symptoms will appear could help researchers test therapies aimed at delaying or preventing the disease.

In TODAY’s Symptom Check series, an internal medicine physician reveals the subtle warning signs of a condition that may ...

Researchers found plastic particles in many heart attack patients’ blood, raising new questions about health risks.

Isle has already published “Blood of Celentra” and “Life of Celentra,” the respective first two books in her 10-book “The Warrior of Celentra” series, and plans to release the third book, “Breath of ...

I’ll just be upfront and say that I have not read Children of Blood and Bone, and have mostly been familiar with the book, ...

Your ‘normal’ blood work may still hide metabolic risk. Learn more about the key lab markers that can signal issues with your ...

Months to several years before amyotrophic lateral sclerosis (ALS) symptoms arise, levels of certain blood proteins may shift ...

Big Bear Lake bald eagle Jackie is receiving intensive veterinary care, as she remains in "stable but critical condition," as ...