Regular physical activity associated with a lower likelihood of developing lung and breast cancer in females

In a groundbreaking study, researchers at Stanford University and a French team have uncovered compelling evidence that regular, moderate physical activity plays a crucial role in cancer prevention. The findings, which analysed data from over 4 million women, suggest that just four hours of moderate weekly activity can cut the risk of breast cancer by 31%.

The study, which was part of the Women's Health Initiative, tracked nearly 162,000 women, providing a comprehensive look at the impact of physical activity on cancer risk. The research discovered that women who engaged in moderate exercise for 4-7 hours weekly saw their breast cancer risk decrease by an even more dramatic 31%.

The study's results also revealed that the protective effect of regular exercise extends to smokers facing lung cancer risk. Women who smoke but maintain regular physical activity show significantly lower lung cancer rates than their sedentary counterparts. This suggests that movement itself is medicine, a powerful complement to other cancer prevention strategies without associated side effects or costs.

The research indicates that exercise helps regulate hormones like estrogen and insulin, both of which can drive certain cancer types when present at consistently high levels. Additionally, it appears that regular physical activity may improve cells' ability to repair DNA damage, a critical function for preventing the mutations that can lead to cancer development.

Exercise also enhances immune surveillance, the process by which our immune system identifies and eliminates potentially cancerous cells. It increases the circulation of immune cells and improves their function, creating a more robust defense system.

A French research team conducted a meta-analysis of 38 studies published between 1987 and 2014, encompassing an astonishing 4.18 million women. The data suggests that the protective effect of regular physical activity follows a dose-response relationship - as physical activity increases, cancer risk consistently decreases. More strenuous activity in the lungs might limit the capacity for cancerous agents from cigarettes to accumulate.

Beginning an exercise regimen later in life still confers significant protective benefits against breast cancer. Moderate, consistent movement delivers significant protection without requiring extreme fitness commitments. However, it's essential to remember that combining regular physical activity with other cancer-fighting strategies like a healthy diet and regular screenings maximises protection.

In conclusion, the data suggests that regular physical activity is a potent ally in the fight against cancer. Focus on time, not intensity, when engaging in physical activity for cancer prevention. Whether you're walking, cycling, or swimming, every move counts in the quest for better health.

Regular physical activity associated with a lower likelihood of developing lung and breast cancer in females