Article: The role of exercise in preventing breast cancer

• hesammoazzami13755731
• September 18, 2025
• 3:09 p.m
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Breast cancer is one of the most common cancers among women and paying attention to preventive factors is very important in the health of society. Meanwhile, regular exercise is known as a natural, low-cost and effective way to reduce the risk of contracting this disease. Scientific studies show that exercise can reduce the possibility of breast cancer by affecting hormones, immune system and body weight. In this article, we will examine the role of exercise in breast cancer prevention, doctors' point of view, and also some common rumors.

Exercise and control of hormones related to breast cancer

One of the main causes of breast cancer is the high level of the estrogen hormone in the body. Research has shown that aerobic activities such as brisk walking, cycling, and swimming decrease estrogen and insulin levels; Hormones whose excessive increase is directly related to the growth of breast cancer cells. Exercise also improves insulin resistance and reduces the risk of metabolic syndrome, which is one of the predisposing factors for cancer.

Scientific view of doctors

Oncology doctors emphasize that even 30 minutes of regular exercise a day can significantly reduce the risk of breast cancer (20-30%). These findings show that exercise is essential not only for weight loss, but also as a preventive tool for breast health.

Effect of exercise on body weight and excess fat

Obesity and overweight are important risk factors for breast cancer, because fat cells can produce excess estrogen. By burning calories and reducing body fat percentage, exercise helps in hormonal balance and limits the growth of abnormal cells. In addition, exercise helps maintain a stable weight during menopause, when the risk of breast cancer naturally increases.

False belief about fast weight loss

Some people think that only rapid weight loss with strict diets can prevent cancer. This is a rumor, because sudden and unprincipled changes in weight are not only not beneficial, but may endanger the general health of the body. Regular and continuous exercise is the best and most stable way to control weight.

Exercise and the immune system

Another key role of exercise is strengthening the immune system. Regular physical activity makes the body more resistant to diseases by increasing blood flow, improving the function of immune cells and reducing chronic inflammation. Studies have shown that physically active women suffer less from chronic inflammation, which is one of the important factors in the formation of breast cancer.

Exercise during menopause and its role in prevention

Menopause is one of the critical stages of women's life, which is associated with hormonal changes and increased risk of breast cancer. During this period, exercise can have a significant effect in reducing risk. Light activities such as daily walking, yoga, and swimming help balance hormones and prevent weight gain. According to doctors, menopausal women who exercise at least three times a week have a lower risk of developing breast cancer.

Light or heavy exercise?

The question that many patients ask is whether to do heavy sports to prevent cancer? The scientific answer is that moderate and regular exercise has the greatest effect. Too much pressure is not only not useful but may cause physical harm.

The role of exercise in preventing the recurrence of breast cancer

Exercise is not only used for primary prevention, but also useful in women who have had a history of breast cancer. Research has shown that regular exercise can reduce the likelihood of disease recurrence and improve the quality of life of recovered patients. Light activities such as yoga or walking also help reduce fatigue from chemotherapy and improve mental health.

The role of exercise in preventing breast cancer is a scientific and proven fact. Exercise can significantly reduce the risk of contracting this common disease by reducing cancer-causing hormones, controlling weight, strengthening the immune system, and improving the quality of life. Misconceptions such as that exercise is only good for weight loss or that heavy exercise is necessary should be discarded. The fact is that even simple daily activities such as brisk walking, cycling or swimming can act as a natural shield against breast cancer. Therefore, doctors advise all women to consider exercise not as a choice, but as an integral part of their healthy lifestyle.

The effect of exercise on hormones and breast cancer; A scientific and vital connection

Breast cancer is one of the most common cancers among women and various factors play a role in its occurrence. One of the most important factors is hormonal imbalance. Scientific research has shown that regular exercise can reduce the risk of breast cancer by regulating key hormones. This article examines the relationship between exercise, hormones and breast cancer prevention.

Exercise and reduction of estrogen levels

Estrogen hormone plays an essential role in the growth and proliferation of breast cells. Studies have shown that high levels of estrogen in the blood are associated with an increased risk of breast cancer. Regular exercise, especially aerobic activities such as brisk walking, cycling, and running, can lower estrogen levels in the body. This reduction, especially in menopausal women, plays an important role in preventing the growth of cancer cells.

Physicians' point of view about estrogen and exercise

Oncology doctors believe that daily physical activity for at least 150 minutes a week can restore hormonal balance and significantly reduce the risk of estrogen-dependent cancer. This finding shows the importance of exercise in managing body hormones.

Exercise and insulin

The insulin hormone, in addition to its vital role in sugar metabolism, can stimulate the growth of breast tumors if it increases too much. Exercise prevents this process by improving insulin resistance and lowering blood sugar levels. For this reason, regular physical activity is considered one of the best natural ways to reduce the risk of breast cancer.

Exercise and progesterone

Progesterone hormone is also another effective factor in the growth cycle of breast cells. Exercise helps balance between estrogen and progesterone and prevents sudden changes that can cause disease. This hormonal balance is especially important during perimenopause.

The role of exercise in reducing inflammation and hormonal stress

In addition to the main hormones, exercise plays an important role in reducing chronic inflammation and levels of stress hormones such as cortisol. Persistent inflammation and increased cortisol can create the perfect environment for abnormal cell growth. By reducing the level of stress and increasing the secretion of endorphins, exercise not only strengthens the physical health but also the mental health of the person.

Misconceptions about exercise and hormones

There are rumors in society that intense exercise can disrupt hormones and be harmful for women. This belief is incorrect. Scientific reality shows that balanced and regular exercise is the best way to maintain hormonal balance. Only very heavy sports without enough rest may have the opposite effect, which is also mentioned in scientific articles.

Exercise during menopause

Menopause is associated with a drop in the level of female hormones and an increase in the risk of breast cancer. Exercise during this period can play a key role in cancer prevention by reducing body fat, re-regulating hormones and strengthening bone density. Even simple activities such as a daily walk or yoga practice can have a significant positive effect.

Exercise and breast cancer patients

The important point is that exercise is not only used for prevention. In patients undergoing breast cancer treatment, light and controlled exercise can help reduce treatment complications such as fatigue, weight gain, and psychological problems. Also, scientific evidence shows that exercise reduces the possibility of disease recurrence.

The effect of exercise on hormones and breast cancer is a proven topic in medical science. Exercise can protect the body against cancer like a natural medicine by reducing estrogen and insulin levels, balancing progesterone, reducing inflammation and controlling stress hormones. False beliefs that consider exercise only for weight loss or that it is harmful to hormones have no scientific basis. The fact is that even simple daily activities like a brisk walk can be a natural defense against breast cancer. Therefore, including exercise in the daily lifestyle is not only a smart choice, but also a vital necessity for women's health.

Prevention of breast cancer recurrence with exercise

Returning to life after breast cancer treatment for many women is associated with the worry of disease recurrence. Although genetic and environmental factors play a role in the likelihood of recurrence, medical research has shown that regular exercise can significantly reduce the risk of recurrence. In addition to strengthening the body, exercise has positive effects on the immune system, hormones, and mental health, and these characteristics make it an effective tool in preventing the recurrence of breast cancer.

Exercise and control of hormones involved in cancer recurrence

Estrogen hormone is one of the key factors in the growth of many breast tumors. Research shows that aerobic exercise such as brisk walking, cycling, and swimming reduces estrogen levels and restores hormonal balance. The same mechanism makes the chance of cancer cells growing again significantly less. For this reason, doctors introduce regular exercise as an integral part of post-treatment care.

The role of exercise in regulating insulin

Increasing insulin resistance is one of the aggravating factors of cancer recurrence. By improving insulin sensitivity, exercise controls blood sugar levels and creates an unsuitable environment for the growth of abnormal cells.

Strengthening the immune system with exercise

Another important effect of exercise is strengthening the immune system. Regular physical activities increase blood circulation, improve lymphocyte function, and reduce chronic inflammation. As a result, the body becomes more capable of identifying and destroying possible cancer cells. This immunogenic effect is one of the main reasons that make exercise an effective way to reduce the possibility of cancer recurrence.

Exercise and reducing the side effects of previous treatments

Patients who have undergone chemotherapy or radiotherapy often experience chronic fatigue, decreased muscle strength, and mental disorders. By increasing energy, improving cardio-pulmonary capacity and releasing endorphins, exercise increases the quality of life and indirectly reduces the possibility of disease recurrence. Because stress and physical weakness are effective factors in weakening the body against disease.

Returning to life after cancer is always accompanied by worry and anxiety. Group sports, yoga, and meditation not only reduce stress, but also boost patients' self-confidence. Better mental health means more adherence to medical advice and a stronger immune system, both of which help reduce the risk of relapse.

False beliefs about exercise after cancer

Some patients think that exercise after cancer treatment can be harmful or help the disease return. This is a false rumour. Scientific research shows that light and moderate exercise is not only safe, but also one of the most effective ways to prevent cancer from returning. The only recommendation of doctors is that the exercise program should be designed according to the patient's physical conditions.

What kind of sport is more suitable?

Doctors recommend that a combination of aerobic and resistance sports has the best results. Aerobic exercises such as jogging or brisk walking help to reduce fat and balance hormones, while resistance exercises such as dumbbell or band exercises increase muscle strength and bone density. Yoga and stretching exercises are also very useful for improving flexibility and mental relaxation.

Summary

Prevention of breast cancer recurrence with exercise is a scientific and proven fact. Exercise can reduce the risk of disease recurrence by regulating hormones, strengthening the immune system, improving mental health and reducing the complications of previous treatments. False beliefs that exercise is harmful after cancer should be abandoned and patients should accept exercise as part of their new lifestyle. Even simple activities like walking for 30 minutes a day can act as a protective shield against cancer recurrence. Therefore, doctors advise all women to include exercise as a natural and permanent medicine in their daily schedule.

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