Shift Work

Definition

An organization of work where employees regularly change hours (morning, afternoon, night), disrupting the natural circadian rhythm. This type of work desynchronizes biological clocks with external environment signals.

How it works

Shift workers experience constant desynchronization between their internal clock and external signals like light and meals. This perturbation creates a chronic mismatch affecting sleep, digestion, and hormones. Changing shift work involves rapid changes in meal times, destabilizing ghrelin and leptin levels. This situation increases the risk of metabolic disorders, weight gain, and long-term health problems. Adaptation is challenging because the body struggles to resynchronize its rhythms.

Role

Creates metabolic and hormonal disorder affecting weight management and sleep quality.

Examples

• Night shift followed by a day off, Alternating week of day and night shifts, Rotating shifts every 3-4 days, Irregular hours without a stable pattern

Recommendations

Maintain regular meal times as much as possible and prefer easily digestible foods. Adapt portion sizes to your actual activity and avoid large meals during night shifts. Consume proteins and fiber to stabilize energy and combat fatigue.

Key takeaway

Shift work deeply disrupts metabolism and requires an adapted eating strategy for each schedule.

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