TORONTO, Canada -- Teenagers who don't sleep well may be at risk for heart disease later in life.
About one in five teens has significant sleep problems, like the inability to fall asleep, frequent night waking, and not getting enough sleep.
A new Canadian study of over 4,000 adolescents found those who consumed more unhealthy foods, exercised less, and watched more TV had high sleep disturbance scores.
Researchers say sleep disturbances are linked to high cholesterol, blood pressure, and a higher BMI, which are all risk factors for heart disease.
Previous studies have shown poor sleep also impacts teens' performance in school.
This story was led by researchers at The Hospital for Sick Children (CAN) and published in the "Canadian Medical Association Journal".