Government and other scientists are proposing a new way to define Alzheimer's disease — basing it on biological signs, such as brain changes, rather than memory loss and other symptoms of dementia ...

Disease is often viewed in a binary way — you either have it or you don’t. Biology doesn’t work that way, of course. Years before a diagnosis, molecular changes are underway leading to the development ...

Alzheimer’s disease (AD) is a progressive, neurodegenerative disease characterized by accumulation of beta-amyloid in extracellular plaques and tau protein in intracellular neurofibrillary tangles ...

Several dozen studies focused on oligometastatic disease (OMD) were presented across four major oncology meetings of 2025, underscoring that what was once a speculative concept is now a cornerstone of ...

The World Health Organization and 500 experts have established a consensus on the definition of airborne diseases. The groups are aiming to prevent confusion similar to that experienced during the ...

The World Health Organization has defined a new set of criteria for infectious diseases spread through the air following significant controversy and confusion during the pandemic about how the ...