08 Feb Fatigue Can Lead to Accidents

Fatigue Can Lead to Accidents

Fatigue is more than simply feeling tired. It can reduce alertness, concentration, judgment, coordination, and reaction time—all of which are critical to working safely. A fatigued employee may make mistakes or fail to recognize hazards that would normally be obvious.

Most adults need approximately 7 to 9 hours of sleep each night, although individual needs vary. Repeatedly getting insufficient or poor-quality sleep can result in accumulated sleep debt and increased fatigue.

Why Fatigue Is a Safety Hazard

Fatigue can affect your ability to:

• Concentrate and remain attentive.
• Recognize changing conditions and hazards.
• Make sound decisions.
• React quickly to unexpected events.
• Operate vehicles, machinery, and equipment safely.
• Communicate effectively with coworkers.
• Remember instructions and follow procedures.

Fatigue is particularly dangerous when driving, operating heavy equipment, working at heights, performing electrical work, or conducting other safety-critical tasks.

Severe fatigue can also cause microsleeps—brief, involuntary episodes of sleep that may last only a few seconds. During a microsleep, a person may appear awake but temporarily stop processing information or responding to the environment.

Recognize the Warning Signs

Signs that fatigue may be affecting your ability to work safely include:

• Frequent yawning or heavy eyelids.
• Difficulty keeping your eyes open.
• Trouble concentrating.
• Slower reactions.
• Forgetfulness or confusion.
• Irritability or unusual changes in mood.
• Poor coordination.
• Repeated mistakes.
• Difficulty maintaining your head or posture.
• Drifting from a traffic lane or difficulty remembering the last several miles while driving.

Do not ignore these warning signs.

What Causes Fatigue?

Fatigue can result from many factors, including:

• Insufficient or interrupted sleep.
• Long or irregular work hours.
• Night or rotating shifts.
• Physically or mentally demanding work.
• Extended periods without adequate rest.
• Stress and personal demands.
• Poor sleep habits.
• Certain medications.
• Alcohol or other substances.
• Sleep disorders or other medical conditions.

Our bodies follow a natural circadian rhythm, which influences periods of sleepiness and alertness throughout the day. Working at night or changing shifts can interfere with this normal sleep-wake cycle.

Reducing Fatigue

Employees can help reduce fatigue by:

• Maintaining a consistent sleep schedule whenever possible.
• Getting sufficient sleep before reporting to work.
• Creating a dark, quiet, cool, and comfortable sleeping environment.
• Limiting unnecessary interruptions during planned sleep.
• Maintaining a balanced diet and regular physical activity.
• Taking scheduled rest breaks.
• Staying properly hydrated.
• Discussing medications that cause drowsiness with a healthcare professional.
• Seeking medical evaluation when persistent sleep problems or excessive daytime sleepiness occur.

Short naps may temporarily improve alertness, but they are not a substitute for adequate, regular sleep.

Fatigue and Driving

Never assume that opening a window, turning up the radio, drinking caffeine, or other temporary measures will make severely fatigued driving safe.

If you are struggling to stay awake, do not continue driving or operating equipment. Stop in a safe location and follow company procedures for addressing fatigue.

Employees should report when fatigue may prevent them from performing safety-sensitive work safely. Supervisors should take reports of fatigue seriously and determine appropriate measures before work continues.

Planning Work Safely

Fatigue should be considered when planning:

• Extended or irregular shifts.
• Night work.
• Overtime.
• Long-distance driving.
• Physically demanding activities.
• High-risk or safety-critical tasks.

Some industries, including commercial transportation and aviation, have specific hours-of-service or duty-time requirements that must also be followed.

Remember

Being awake does not necessarily mean you are alert enough to work safely.

Recognize the warning signs of fatigue in yourself and others. Get adequate rest, take appropriate breaks, and speak up when fatigue could make a task unsafe. No deadline is worth an accident caused by trying to work when you are too tired to do the job safely.