Snoring in infancy linked to impaired cognitive development

Two studies from Australia associate snoring in the first year of life to impaired cognitive development. Researchers suggest that lower cognitive development could become worse in these infants with age.

In the first study, 16 infants who started snoring shortly after birth were compared with 88 babies who did not snore. Infants were determined to be snorers if their snoring occurred three or more nights a week. Snoring because of a cold did not count. The results found that cognitive development was reduced in frequent snorers from the first month of life to six months.

The second study looked at 13 infants who snored frequently from the first month of birth to 12 months. These babies had significantly lower cognitive scores when compared with 78 infants who did not snore frequently.

Both studies were conducted through the University of Adelaide and University of Australia in South Australia. The research was published in the December edition of the journal Sleep Medicine.

Learn the facts about young children and sleep and about snoring. Additional stories about children and snoring are available on the Sleep Education blog.

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Loud Snoring and Insomnia Symptoms May Lead to Metabolic Syndrome

The development of obesity-related risk factors starts with a series of common sleep problems, a new study reports. People who snore loudly or have two common insomnia symptoms – difficulty falling asleep and unrefreshing sleep - have an increased risk of developing metabolic syndrome.

Metabolic syndrome increases the risk of heart disease, diabetes and stroke. People with metabolic syndrome must have at least three out of the five following risk factors: excess abdominal fat, high triglycerides, low HDL cholesterol, high blood pressure and high blood sugar.

Findings show people who snore have double the risk of developing metabolic syndrome doubles. Specifically, loud snoring predicts the development of high blood sugar and low HDL cholesterol.

The risk also increases by 80 percent in adults who have difficulty falling asleep and by 70 percent for people who don’t feel refreshed after waking. However, neither risk was tied to a specific risk factor.

Two other common insomnia symptoms - difficulty staying asleep and frequent waking - did not predict the development of metabolic syndrome.