On a December morning in 2013, this Metro-North train headed towards New York City derailed in the Bronx, killing four passengers and injuring 115. The driver was later found to have severe sleep apnea. This wasnât the first incident involving trains or the last. Learn more.
Arm pain can be caused by a wide variety of problems, ranging from joint injuries to compressed nerves. Depending on the cause, arm pain can start suddenly or develop over time. In many cases, arm pain actually originates from a problem in your neck or upper spine. Arm pain, particularly pain that radiates into your left arm, can even be a sign of a heart attack. Causes.
Although some of the causes of arm tingling are not life threatening, the symptom could also indicate something serious like a Stroke or a Heart Attack. When arm tingling happens in the left arm, it may be a cause for immediate medical attention. If arm tingling comes with these symptoms, seek medical help immediately. 1  Coldness with profuse perspiration.  Weakness, overall or just of the affected arm with partial or complete loss of sensation in the arm.