Archive · 26 Dec 2025
Night Shifts Linked to Aggressive Breast Cancer
Researchers found that working night shifts and having disrupted sleep can make breast cancer grow faster and be more aggressive.
In their study, animals with disrupted sleep got cancer earlier, around 18 weeks, compared to 22 weeks for those with normal sleep.
The cancer in these animals was also more likely to spread to the lungs.
Disrupted sleep weakened their immune system, making it easier for cancer to grow.
This shows how important good sleep is for staying healthy.
The researchers also found that long-term disrupted sleep changed the structure of healthy breast tissue, making it more likely to develop cancer.
They believe this discovery could help find new ways to fight back against cancer.
Models with disrupted sleep developed cancer earlier (18 weeks) compared to typical models (22 weeks).
Cancer in sleep-deprived models was more aggressive and could spread to the lungs.
Disrupted internal clock suppressed immune defenses, aiding cancer growth.
Researchers suggest that night shifts and disrupted sleep can increase the risk of aggressive breast cancer.
The study highlights the importance of good sleep for overall health and cancer prevention.
- Who
- Researchers from Texas A&M University College of Arts and Sciences
- What
- Disrupted sleep due to night shifts can lead to more aggressive breast cancer
- When
- Models with disrupted sleep showed signs of cancer at 18 weeks, compared to 22 weeks for typical models
- Where
- The study was conducted in a research setting, likely a laboratory
- Why
- Disrupted sleep suppresses immune defenses, creating a more hospitable environment for cancer growth
- Study Findings
- Models with disrupted sleep developed cancer earlier and more aggressively.
- Cancer Development
- Typical models developed cancer after 22 weeks, while circadian-disrupted models showed signs at 18 weeks.
- Cancer Aggressiveness
- Tumors in sleep-deprived models were more aggressive and could spread to the lungs.
- Immune System Impact
- Disrupted internal clock suppressed immune defenses, aiding cancer growth.
- Research Team
- Texas A&M University College of Arts and Sciences
- Journal
- Oncogene
