A father-of-three accused of murdering his daughters demonstrated more and more unstable behavior in the months before the horrific slayings, court documents show. Travis Decker’s ex-wife warned ...

These, in turn, are often associated with unstable behavior, often taking the form of impulsivity and aggressive lashing out at others. A child cannot form a secure attachment to a parent whose ...

Multiple Democratic senators have shared concerns regarding Sen. John Fetterman’s (D-Pennsylvania) unstable behavior. The senators are having private discussions about how to help Fetterman ...

Scientists have been able to recreate the extreme conditions found on icy moons in deep space—and revealed the unstable behavior of water.