Can stress cause cancer cells to grow?

As an expert in the field of oncology, I can provide some insights into the relationship between stress and cancer growth. It is important to note that while stress has been identified as a potential risk factor for the development of cancer, the exact mechanisms through which stress might influence cancer progression are complex and not fully understood. Research has suggested that chronic stress can have a negative impact on the immune system, which is a critical defense against cancer. When the immune system is compromised, it may be less effective at identifying and eliminating cancer cells. Additionally, stress hormones such as cortisol can potentially create an environment within the body that is more conducive to the growth of cancer cells. However, it is not accurate to say that stress directly causes cancer cells to grow. Instead, the relationship is more indirect, involving the complex interplay between the body's stress response, immune function, and other physiological processes. In summary, while stress may contribute to an environment that could potentially support the growth of cancer cells, it is not a direct cause. It is always recommended to manage stress as part of a comprehensive approach to health and wellness, especially for individuals with a history of cancer or those at risk.

Previous studies have shown that stress is a risk factor for cancer, and for example, that psychological stress is linked to breast cancer aggressiveness. ... But then things go wrong: one reason is cancer cells start to send signals to immune cells that cause them to misbehave in a way that helps the tumor grow.