Can a short workout before breast cancer surgery change tumor markers?

This study looks at women with newly diagnosed breast cancer who take part in exercise or mind-body programs for 3-6 weeks before their surgery. Researchers want to see if these programs help reduce stress, anxiety, and improve mood and quality of life. They also check for changes in tumor growth markers and blood hormones linked to breast cancer. The study does not provide treatment and will not share individual test results with participants.