The study of teens in Toronto found a link between sleep disturbance and an increased chance for high cholesterol, high blood pressure and obesity.
A lead author of the study from the group "SickKids" says these findings are important because sleep disturbance often occurs in teenage years.
Of the 4 thousand young adults surveyed for this study, researchers say almost one in five reported their weekend sleep at "fairly bad" or "bad".
One cardiologist says that these poor habits lead to a cycle of poor energy and consumption of caffeinated beverages, and sleep medication.
One recommendation for breaking this cycle is keeping a set sleep schedule.