Bioengineers are creating human body parts to replace organs and manage life-threatening diseases. How techniques like 3-D printing and stem cell research are driving medical advances and raising ethical questions
Insomnia, snoring, apnea and restless leg syndrome prevent millions of Americans from getting a good night’s sleep. Why sleeping is so important to overall health and advice from experts on how best to battle mild to severe sleep disorders.
- Michael Twery director of the National Center on Sleep Disorders Research at the National Institutes of Health.
- Helene Emsellem director, Center for Sleep and Wake Disorders, and associate clinical professor of neurology, George Washington University; author of "Snooze ... Or Lose!"
- David Neubauer associate professor in the department of psychiatry, Johns Hopkins University School of Medicine, and associate director, Johns Hopkins Sleep Disorders Center.
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