What are the effects of shift work disorder?

Shift work disorder is a real and serious condition that affects millions of people around the world, especially those who work night shifts, early morning shifts, or rotating schedules. When your job requires you to be awake and alert at times when your body naturally wants to sleep, it can throw your entire system out of balance. This isn’t just about feeling tired—it’s about how working against your natural rhythms can impact almost every part of your life.

## What Happens to Your Body with Shift Work Disorder?

Your body runs on a 24-hour cycle called the circadian rhythm. This internal clock tells you when to feel sleepy and when to feel awake, based largely on light and darkness. Normally, you feel sleepy at night and alert during the day. But if you work nights or rotating shifts, this rhythm gets disrupted. You might find it hard to fall asleep when you need to rest during the day because sunlight signals your brain that it’s time to be awake.

People with shift work disorder often struggle with insomnia during their off hours—meaning they lie in bed but can’t sleep even though they are exhausted. When they are at work during the night or early morning, they may feel extremely drowsy, have trouble concentrating, and make more mistakes than usual because their brain is begging for rest.

## The Physical Health Effects

Working against your natural sleep-wake cycle doesn’t just leave you feeling groggy; it can have serious long-term effects on your health.

– **Heart Health:** Over time, chronic sleep deprivation from shift work increases the risk of heart disease and high blood pressure.
– **Metabolic Problems:** There is a higher chance of developing obesity and type 2 diabetes because irregular eating patterns disrupt metabolism.
– **Digestive Issues:** Many shift workers report stomach problems like irritable bowel syndrome (IBS) or constipation due to irregular meal times.
– **Weakened Immune System:** Not getting enough quality sleep makes it harder for your body to fight off infections.
– **Accidents:** Drowsiness increases the risk of accidents both at work (like medical errors if you are a nurse) or while driving home after a long shift.

## The Mental Health Effects

The impact isn’t only physical—shift work disorder takes a toll on mental health as well.

– **Mood Changes:** Many people experience irritability, mood swings, anxiety, stress