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A new study found that alcohol was involved in more than 20% of both opioid- and benzodiazepine-related deaths reported to the Drug Abuse Warning Network in 2010.

A 60-year-old homosexual man presented to the outpatient clinic with a 3-day history of facial rash associated with pain. The rash did not affect any other part of the body. He was not currently taking any immunosuppressive medication. What’s your diagnosis?

This hypersensitivity reaction may be secondary to medications, infection, collagen-vascular disorders, or an occult malignancy. When it is localized to the skin, prognosis is excellent.

What does a broken “clock gene” have to do with Alzheimer disease? Does shift work cause heart disease? Who shouldn’t be given Zolpidem for sleep? Nocturnal problems from A to Z fill round 3 of our Sleep Disorders quiz.

The older the age at which self-reported sleep disturbance was indicated, a Swedish study found, the higher the risk of Alzheimer dementia.

Here are 5 photos of non-healing ulcers: can you make the diagnosis?

Dyspnea and blood-streaked sputum; severe URI followed by rash; chronic pain; Lemierre syndrome . . . how well will you do on this quiz?

Sleep disorders can cause comorbid ills and many medical conditions can disturb the yin-yang of sleep and waking. Take our sleep quiz to find out what you know about which comes first.

The neuroscience is clear-you can’t possibly get good at multitasking. It’s a myth. Rather than keep trying to improve the “skill,” why not try something different. Read on . . .

It's not a new formula, but the study was large and the results significant: almost 4 of 5 MIs may be preventable in men who adhere to 5 healthy habits we're all familiar with.

Sperm concentration, total sperm count, and percentage of spermatozoa with normal morphology are compromised. Whether semen quality is restored if alcohol intake is reduced remains to be seen.

The key to reining in this trend is to link this group to health services as early as possible. The key to linkage, in turn, is testing. A new study finds room for improvement in meeting CDC testing coverage recommendations.

A 50-year-old man wonders whether the many asymptomatic lesions he has had for “almost all my life” can be removed. What are these lesions?

Obstructive sleep apnea is associated with a spectrum of morbidity, from daytime sleepiness to increased risk for vascular disease. Early symptoms aren’t always obvious. Test your diagnostic skills with our OSA quiz.

A 62-year-old man with a persistent snoring problem presented for an oral medicine consultation. Examination revealed very slight facial asymmetry. A sagittal series of tomograms was obtained. What do these findings suggest?

Mycosis fungoides; circumscribed erythematous lesions in a toddler; large abdominal ecchymotic mass . . . some of the challenges for you in this quiz.

There is a strange healing power in a doctor's words that has allowed doctors to be useful over the millennia even when their treatments were ineffective or harmful. Reduced fear and renewed hope are wonderful medicines.

Chronic pain and psychological interventions, complex regional pain syndrome, spinal fractures and low back pain, acute gouty arthritis, Chiari I malformation, Dengue fever, erythema nodosum-a look at pain in its many shapes, sizes, and locations.