Teenagers who like to stay up late on the computer or listening to music may be increasing their risk for heart disease as adults.
Researchers at Case Western Reserve University studied the link between a lack of sleep and high blood pressure in teenagers.
238 teens participated -- they were monitored at home and during a formal sleep study -- and their blood pressure was measured several times.
They found the odds of developing high blood pressure was three times higher among those who did not get a sufficient amount of sleep, about a quarter of the study participants fit in this category.
Experts say prevention of high blood pressure in young adults may have to include proper sleep, in addition to diet and exercise.

And in other medical news…
A non-invasive PET scan of the brain may be able to detect plaques that are linked to Alzheimer’s disease.
This is encouraging because right now the only way to determine if a person has these brain plaques is by getting a tissue sample or through an autopsy.
Researchers in Finland analyzed brain tissue samples of ten people who were still alive then later did pet scans on the same patients.
They found the scans were able to pick out which patients had these plaques in nine out of ten cases.
Researchers say larger studies are needed to be sure the scans can become a reliable tool for diagnosing Alzheimer’s disease.