The reasons why people take their own lives aren't always clear, mental health experts say; a multitude of biological and psychological factors may be involved in how individuals respond to difficult circumstances in life.

MED-Medical-Marijuana-Child (with art)

Six-year-old Jayden David violently shakes on the ground, his blue eyes vacant and then filled with searing pain. The video shows an unvarnished look at a seizure, something Jayden once experienced routinely. Not anymore, says his father, thanks to medical marijuana.

MED-Breast-Cancer-Symposium (with art)

Research presented at a just-concluded breast cancer symposium will help doctors understand how to use existing drugs better when certain drugs don't work, and how chemotherapy may not be to blame for so-called "chemo brain."

TECH

Sci-Fi-Future

Unmanned vehicles, robotic aides to the elderly and surgical enhancements to make you stronger, smarter, or even give you night vision -- it's all part of the world the U.S. intelligence community says could exist just 20 years from now.

State-Department-Tweeting

In the middle of a foreign policy crisis, diplomacy isn't always best digested 140 characters at a time. But the reaction so far to newly proposed State Department guidelines for staff members tweeting in their official capacity about certain subjects has been universally negative.

TRAVEL

TRAVEL-Rivera-Crash-Charter-Safety

Jenni Rivera. Add the Mexican-American superstar's name to a long list of beloved celebrities killed in the crash of a charter jet. Overall, the industry is overwhelmingly safe. Yet Sunday's crash in northern Mexico that killed Rivera and six others, including a pilot and co-pilot, has focused attention on charter safety.

TRAVEL-7-Travel-Gifts-Exploring

Gift-giving madness and the struggle to find the perfect present can consume the holiday season. But we've got the travel buffs on your list covered with ideas from versatile backpacks to African chocolate that are sure to inspire wanderlust.

TRAVEL-Celebrates-Top-10-Christmas-Destinations

If your Christmas is too often one of tacky decorations, over-cooked turkey and bitter family feuds, now may be the time to put the baubles back in the attic and plan yourself a yuletide getaway. To help you along, we offer our top picks for the most Christmassy places around the world.

LIVING

FEA-Living-Blended-Christmas-Hanukkah-Holiday

Rebecca and Roni Kopelman have been celebrating Christmas and Hanukkah since they got together in 2006, building the foundations of an interfaith household. Some families keep strict religious and family traditions around holidays, but more families are blending religious and cultural traditions.

FEA-Adoption-Internet

Andrew Cadieux was 20 years old when he learned through Facebook that he was adopted. His story is just one showing how "closed" adoptions are unrealistic in the Internet age, according to a new report.

FEA-Boomers-Care-For-Parents

As the more than 76 million babies born in the "Baby Boom" of 1946 to 1964 approach and enter retirement, many thought they would finally be driving across the country in that decked out RV or spending more time spoiling the grandkids. However, with their parents living longer than ever, many boomers have learned that unexpected obligations can cause their retirement plans to veer off-course.

FEA-Made-In-USA-Shopping (with art)