If you’ve had an especially stressful life event lately, you may be at increased risk for breast cancer. When a team of researchers from Ben-Gurion University compared 225 women younger than 45 years of age who had breast cancer to 367 healthy women of comparable age, they discovered that two or more “severe life events” increased the risk of breast cancer by 62 percent. Dr. Ronit Peled, head of the study, described losing a parent, close relative, or spouse; or divorce of parents before age 20, as “severe life events.”
Other researchers have also found a link between stressful life events and increased risk for the recurrence of breast cancer. For example in a study of 94 patients with breast cancer, those who experienced a traumatic event remained cancer-free an average of 30 months; those who had less stressful life events were cancer-free for 37 months; and those without a severe or moderate stressful life event were cancer-free for 60 months.
Stress Hormones and Breast Cancer
Ongoing stress can threaten breast-health, in large part, because it disrupts the natural daily natural rhythm of circulating hormones. For instance, one hormone that rises with stress is cortisol, which has been directly linked to breast cancer. Cortisol has a daily rhythm that reaches its lowest level during sleep, it climbs to its highest level by late morning, and then subsides in the afternoon. But when you experience ongoing stress—especially high-pitched, trauma-based stress—the natural ebb and flow of circulating cortisol loses its rhythm and instead, remains elevated. In turn, chronic levels of elevated cortisol weaken the ability of your immune system to fight disease, including not only breast cancer, but also high blood pressure, elevated blood glucose (linked with increased risk of weight gain and diabetes), and osteoarthritis.
Reducing stress will reduce your risk for breast cancer occurrence and recurrence. Some strategies:
• Find someone who is empathetic and compassionate to talk to about stressful situations;