Stress Testing Vs Load Testing

Load testing examines the entire environment and database, while measuring the response time, whereas stress testing focuses on identified transactions, pushing to a level so as to break transactions or systems.
System stress testing: also known as stress testing, is loading the concurrent users over and beyond the level that the system can handle, so it breaks at the weakest link within the entire system.During stress testing, if transactions are selectively stressed.
The other way of dealing this is... testing the system with heavy load & with less resources to handle.
Where as Load Testing mean to test the system with full load & with full resorces in hand.