Developmental stress impairs song complexity but not learning accuracy in non-domesticated zebra finches ( Taeniopygia guttata ).

Therefore, toxic stress can alter or impair brain circuit formation and essentially result in a small brain size in young children.

One view is that acute stress can impair memory, while others believe that acute stress can actually enhance memory.

Therefore, stress at the encoding of an event positively influences memory, but stress at the time of recollection impairs memory.

"We can't say that stress causes cancer, but we do have data that says long-term stress can impair the immune system's functioning," she adds.

Elevations in cortisol occur during stress, and long-term stress impairs declarative memory this way.

But the stress of the job impaired his health.

Several recent studies have shown how stress can impair the skin.

Toxic stress can impair the connection of brain circuits and lead to the development of a smaller brain.

Their explanation for why stress and trauma could impair memories under high emotional arousal is a decrease in the available processing capacity which leads to lower memory processing.