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== Exercise ==
Many shift workers find that a regular exercise routine is helpful for maintaining alertness. In addition, it’s important to eat well and stay hydrated. Finally, taking rest breaks is critical to a person’s health and performance.

Shift workers who regularly work night shifts or alternate between different shifts can experience long-term disruption to their internal sleep-wake rhythms. This can have social as well as physiological consequences.

Caffeine is a stimulant that can help people remain alert, but it should be consumed carefully and in moderation. Many people use a cup of coffee or a caffeinated soda at the beginning of their shift to give them a boost of energy. The caffeine typically takes effect within 15-20 minutes.