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.
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