Source Code. Every computer program is written in a programming language, such as Java, C/C++, or Perl. These programs include anywhere from a few lines to millions of lines of text, called source code. Source code, often referred to as simply the source of a program, contains variable declarations, instructions, functions, loops, and other statements that tell the program how to function. Programmers may also add comments to their source code that explain sections of the code.
1 Pain of many kinds seems to be caused or made worse by stress. 2  Gastrointestinal (gas-tro-in-TES-ti-nal) problems, such as heart-burn, stomach pain, and diarrhea. 3  Insomnia, or difficulty sleeping. 4  Substance abuse, including smoking, drug addiction, and heavy drinking of alcohol.
There are at least three different types of stress, all of which carry physical and mental health risks: 1  Routine stress related to the pressures of work, family and other daily responsibilities.  Stress brought about by a sudden negative change, such as losing a job, divorce, or illness.