In the testing literature, the term load testing is usually defined as the process of exercising the system under test by feeding it the largest tasks it can operate with. Load testing is sometimes called volume testing, or longevity/endurance testing.
#1 Best Method: Caffeine. Drinking caffeine will help you stay awake while driving in a few ways. The first benefit is that caffeine is a short-term diuretic. This means it will make you want to go to the bathroom. Feeling uncomfortable is a benefit when trying to stay awake while driving and it will force you to make stops to go to the bathroom. Staying alive is worth the few minutes needed for the stops. Another unrealized benefit is the action of picking up the cup repeatedly.
Under the Brain's Control. At a Glance. Staying awake and alert or sleeping restfully when we choose to depends largely on the function of a few small areas of the brain. When the alerting areas of the brain are most active, they inhibit activity in other areas of the brain responsible for promoting sleep. This inhibition of sleep results in stable wakefulness.