TAIPEI (Taiwan News) — The Taiwan Breast Cancer Foundation said Sunday that more than 60% of breast cancer patients in the country experienced long-term emotional stress before their diagnosis.

The foundation, in collaboration with Lotung Poh-Ai Hospital, released a survey shedding light on the emotional toll experienced by breast cancer patients. The survey, conducted between February and March, collected 2,450 valid responses, per CNA.

Taiwan Breast Cancer Foundation Chair Chang Chin-chien (張金堅) said that growing research indicates prolonged stress can weaken immunity and trigger inflammation, potentially contributing to the growth and spread of cancer. 

Chang said chronic stress may lead to excessive secretion of stress hormones such as cortisol and adrenaline, which can further affect an individual's health. Such hormones may make cancer cells more aggressive and prone to spread, while also fueling rapid tumor growth.

Chang said that following a Mediterranean-style diet and exercising regularly can help reduce the impact of stress. The diet emphasizes fruits, vegetables, nuts, legumes, and whole grains, uses olive oil for cooking, prioritizes fish and seafood, and limits processed foods and red meat.

Lotung Poh-Ai Hospital Deputy Director Yeh Hsien-tang (葉顯堂) said that 60% of breast cancer patients fear a possible recurrence during treatment. He noted that 44% experience emotional distress due to treatment side effects.

According to China Medical University Hospital, breast cancer in Taiwan most frequently affects women between 45 and 64 years old. Last year, it was the nation's third most common cancer. Possible contributing factors include environmental conditions, hormones, diet, obesity, early menstruation, and late childbirth.

Common symptoms of breast cancer include breast lumps and unexplained discharge from the nipples. Diagnostic methods include breast X-rays and ultrasound. Treatment options encompass surgery, chemotherapy, and hormone therapy.