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Loud snoring, which occurs in nine percent of children two to three years of age, related to behavior problems.

Persistent snoring in preschoolers, which puts them at risk for worse behavior, is most common in children in poorer families and in those breastfed for short times or not at all, a prospective study showed.

After adjustment for demographic variables, frequent snoring was significantly associated with socioeconomic status and duration of breastfeeding, according to Dean W. Beebe, PhD, of the University of Cincinnati ...

Adults who slept less than six hours nightly weren’t adequately protected from virus.

Lack of sleep can reduce the effectiveness of vaccinations, according to a new study.

Researchers measured the sleep patterns of 125 adults who received the three-shot course of the vaccine to protect against hepatitis B. The immune systems of participants who slept less produced fewer antibodies in response to the vaccine and blood tests showed that they did not meet the standard of protection from the virus.

People who slept ...

Three different studies all support the concept that sleep disturbances are associated with cognitive decline among older individuals.

Common sleep problems may be a sign of impending cognitive decline or even Alzheimer’s disease, according to results of several studies reported here.

Sleeping too little or too much, abnormal breathing during sleep, and excessive daytime sleepiness all were significantly associated with cognitive impairment — years later in some cases.

The studies were presented at a “featured research session” during the Alzheimer’s Association International Conference ...