Three free brain games for your phone can help with memory, attention, and flexible thinking. And unlike with other games, there's research to back up the benefits.

Exposure to toxic chemicals, especially flame retardants and pesticides resulted in more than a million cases of intellectual disability in the US between 2001 and 2016, research finds.

When researchers gave mice drugs that fight brain inflammation, senile rodents showed fewer signs of cognitive decline and could better learn new things.

For older women, too little hydration may affect cognitive performance. But too much can do the same.

In a new study, people in middle age who had higher amounts of fat in their mid-section had worse fluid intelligence as they got older.

When their brains are at work, fMRI scans of children with Type 1 diabetes show abnormal patterns seen in cognitive decline in aging, concussion, and ADHD.

"Our data suggest that alcohol and Alzheimer's disease-prone genes may put humans at greater risk of Alzheimer's onset and progression."

"We're probably all killing a lot of our best ideas early in the creative process without knowing it."

Exposure to cadmium could speed up cognitive impairment, but it's even worse for people with a gene key to Alzheimer's disease.

New research explains why we blurt things out. "...it actually doesn't take very much stress at all before people will say something they might later regret."