Health

Smartphones uncover how the world sleeps

A pioneering study of worldwide sleep patterns combines math modeling, mobile apps and big data to parse the roles society and biology each play in setting sleep schedules.

Cardiology

In women, even mild sleep problems may raise blood pressure

It is well known that chronic sleep deprivation can affect cardiovascular health. But according to a new study from Columbia University Irving Medical Center, even mild sleep problems, such as having trouble falling asleep, ...

Pediatrics

Insufficient sleep associated with risky behavior in teens

Adolescents require 8-10 hours of sleep at night for optimal health, according to sleep experts, yet more than 70 percent of high school students get less than that. Previous studies have demonstrated that insufficient sleep ...

Overweight & Obesity

Weight loss and willpower

What does it take to make meaningful, lasting lifestyle changes? Some may argue it takes a fair amount of willpower to develop new habits, but a person can't rely on willpower alone. In this Mayo Clinic Minute, Dr. Donald ...

Psychology & Psychiatry

New evidence that optimists live longer

Researchers from Boston University School of Medicine (BUSM), National Center for PTSD at VA Boston Healthcare System and Harvard T.H. Chan School of Public Health, have found that individuals with greater optimism are more ...

Cardiology

Sleep, but not too much, to boost your heart health

Even if you are a non-smoker who exercises and has no genetic predisposition to cardiovascular disease, skimping on sleep—or getting too much of it—can boost your risk of heart attack, according to a new CU Boulder study ...

Health

How to reduce your risk for coronary artery disease

Coronary artery disease is the most common type of heart disease, diagnosed in more than 20 million people and responsible for more than 350,000 deaths in the U.S, according to the Centers for Disease Control and Prevention.

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