Resetting the body clock could help fight breast cancer, study finds

Credit: Getty Images/Ilya Lukichev

By Olivia Bowthorpe

Breast cancer treatment could be boosted by restoring a normal day-night hormone cycle, research suggests.

Even before tumours become detectable, breast cancer can cause flattened cortisol rhythms, the study in mice found, triggering fatigue, sleep disruption, impaired T cell function and decreased survival.