Staying in a nonsmoking room in a hotel that allows smoking elsewhere does not prevent exposure to tobacco smoke, a new study reports.    

A letter to the Editor.    

In a healthy person with no nail disease, by far the most common cause of thick nails is trauma.    

In a new anthology of essays, 21 nurses describe the often quiet work of keeping patients alive.    

Carrot juice and sunflower seeds add flavor and texture to this drink.    

Using frozen berries eliminates the need for ice.    

The American Psychiatric Association’s official manual of mental disorders, newly revised, may not be ideal, but it offers clinicians a common language.    

With a strong nutritional profile, high-protein chia seeds are a great addition to fruity, nutty breakfast smoothies.    

A study pinpoints just four microbes as the most common causes of severe and fatal diarrhea among the world’s infants.    

Why are elderly veterans and their spouses still waiting months, sometimes more than a year, to qualify for caregiving benefits from the V.A.?    

What families can do if the V.A. rejects a veteran’s claim for caregiving benefits.    

A report found 47 new diagnoses in the tribe in 2012, a 20 percent increase from 2011 and very worrisome in a community where AIDS still carries a stigma.    

As Congress investigates solicitations, some corporations and philanthropies are reluctant to contribute to an outreach program to help with the president’s health care law.    

As Republicans and Democrats in Texas House and Senate hash out the details of the state’s 2014-15 budget, one issue they are not arguing about is support for mental health.    

The Illinois Senate has voted to approve the use of marijuana for medical purposes, which if signed into law would make it the second-most-populous state after California to do so.    

The secretary, Eric Shinseki, is being held accountable for his overwhelmed agency’s problems dealing with claims for disability compensation.    

A growing body of mortality research on immigrants has shown that the longer they live in the United States, the worse their rates of heart disease, high blood pressure and diabetes.    

I had never heard of dystonia — until my doctors told me I had it.    

A ban on abortion at the 12th week of pregnancy is likely to be declared unconstitutional, a federal district judge said.    

This week, the Recipes for Health columnist Martha Rose Shulman experiments with focaccia, an alternative to pizza that makes a great lunch, snack or sandwich.