Understand the link between obesity and breast cancer with Meri Sehat. Explore strategies for weight management and breast health.

Obesity And Breast Cancer

Have you ever heard the phrase "sitting is the new smoking"? Well, if you're a woman and you're overweight or obese, it might be more accurate to say, "Sitting is the new breast cancer risk factor."

Yes, you read that right! Obesity has been identified as a significant risk factor for breast cancer. The risk of breast cancer increases if you have higher levels of estrogen and insulin, which can be due to more fat tissue, especially around the waist.

Introduction

However, the relationship between <a href="https://merisehat.pk/disease/obesity">obesity</a> and breast cancer is not straightforward. Research indicates that gaining weight as an adult increases the risk, but being overweight since childhood does not have the same effect. Additionally, excess fat around the waist will pose a greater risk than having it around the hips or thighs<a href="#accordion">[1]</a>. 
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Understanding of the link between Obesity and Breast Cancer

A study using BMI and cancer incidence data found that around 37,670 new cases of cancer in men and 74,69 new cancer cases in women between 2011 and 2015 were due to excess body weight (i.e. overweight, obese, or morbidly obese)<a href="#accordion">[2]</a>.

The percentage of cases due to excess weight varied across different types of cancer, with the highest number of cases of liver/gallbladder and endometrial cancers in women and esophageal adenocarcinoma in men. 
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Obesity is a well-established risk factor for various cancers in women. For instance, obese women are at a high risk of developing breast cancer. Moreover, they experience different treatment outcomes due to their body weight.

Both pre-and postmenopausal women are at an increased risk of developing breast cancer due to increased body weight. However, it is believed that this risk may be lower in very young premenopausal women who have no family history of breast cancer and live in developed countries. Nevertheless, obese women, regardless of age, generally have poorer survival rates. 
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Obesity increases the risk of some cancers in the following ways<a href="#accordion">[2]</a>:

<ul>
	<li>Fat tissue produces excess estrogen, which is associated with increased risks of breast, endometrial, ovarian, and some other cancers.</li>
	<li>Obese people usually have increased blood levels of insulin and insulin-like growth factor-1, which is responsible for the development of colon, kidney, prostate, and endometrial cancers.</li>
	<li>Obesity combined with chronic inflammatory conditions, such as gallstones or non-alcoholic fatty liver disease, can cause oxidative stress and increase the risk of the biliary tract and other cancers.</li>
	<li>Fat cells produce hormones called adipokines that can stimulate or inhibit cell growth, with high levels of leptin promoting aberrant cell proliferation and low levels of adiponectin having antiproliferative effects that protect against tumor growth.</li>
	<li>Obesity increases risk through impaired tumor immunity and changes in the mechanical properties of the scaffolding tissue that surrounds developing tumors.</li>
	<li>A poor diet is also linked to obesity since it lacks essential nutrients for maintaining healthy cells and preventing cancer.</li>
	<li>Sedentary behavior and lack of physical activity are associated with an increased risk of obesity and breast cancer.</li>
	<li>Certain genetic factors make individuals more susceptible to obesity and breast cancer.</li>
	<li>Obesity can lead to difficulties in cancer screening and management. For instance, screening for cervical cancer is not very effective in obese women. 
	&nbsp;</li>
</ul>

Note: While obesity is a risk factor for breast cancer, not all obese individuals develop breast cancer. Other factors, such as age, family history, and lifestyle choices, can also influence an individual&#39;s risk of breast cancer. 
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Observational studies suggest that obese people losing excess weight can reduce the risk of certain types of cancer, such as breast, endometrial, colon, and prostate cancers. However, these studies cannot prove that obesity causes cancer, and caution should be exercised in interpreting their findings.

In a study of postmenopausal women, intentional weight loss of more than 5% of body weight was associated with a lower risk of obesity-related cancers, especially endometrial cancer. 
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Bariatric surgery among obese people, particularly women, was associated with reduced risks of cancer overall, hormone-related cancers, and obesity-related cancers such as postmenopausal breast cancer, endometrial cancer, and colon cancer.

Nevertheless, more research is needed to fully understand the relationship between weight loss and the risk of cancer among obese people<a href="#accordion">[2]</a>. 
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Losing weight can improve overall health:

<ul>
	<li>Reduces risk of chronic diseases, such as type 2 diabetes, heart disease, and certain types of cancer</li>
	<li>Lowers blood pressure and improves cholesterol levels</li>
	<li>Decreases strain on joints, hence, reducing pain and improving mobility</li>
	<li>Improves sleep quality and reduces the risk of sleep apnea</li>
	<li>Improves mood and decreases risk of depression and anxiety</li>
	<li>Increases energy levels and improves physical performance</li>
	<li>Reduces risk of pregnancy complications and infertility</li>
	<li>Improves immune function and reduces inflammation</li>
	<li>Improves brain function and cognitive performance 
	&nbsp;</li>
</ul>

An effective way to reduce weight includes a combination of a healthy diet, regular exercise, and lifestyle changes. Here are some specific tips that can help<a href="#accordion">[3]</a>:

Eat A Balanced And Nutritious Diet: It&rsquo;s important to eat a balanced diet, which includes plenty of fruits and vegetables, whole grains, lean proteins, and healthy fats. Avoid processed and high-calorie foods.

Control Portion Sizes: Use smaller plates and cups, and measure the portions to avoid overeating.

Stay Hydrated: Drink plenty of water and avoid sugary drinks.

Exercise Regularly: At least 30 minutes of moderate-intensity exercise every day, such as brisk walking, cycling, or swimming, is recommended.

Be Active: Find ways to stay active throughout the day. For instance, take the stairs instead of the elevator or walk during lunch breaks.

Get Enough Sleep: Aim for at least 7-8 hours of sleep every night, as lack of sleep can affect weight loss.

Manage Stress: Stress can contribute to weight gain, so find ways to manage stress, such as meditation or deep breathing exercises.

Seek Support: A registered dietitian or a personal trainer can help develop a personalized weight loss plan and provide support and accountability. 
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Conclusion

Obesity has been linked to an increased risk of breast cancer in postmenopausal women. This is thought to be because adipose tissue produces estrogen, which can promote the growth of estrogen-sensitive breast cancer cells. Additionally, obesity can lead to chronic inflammation and insulin resistance; both increase the risk of breast cancer. 
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However, the relationship between obesity and breast cancer is complex and not fully understood. Other factors, such as age, family history of breast cancer, and hormone therapy use, can also affect a woman&#39;s risk of developing breast cancer. Therefore, women should maintain a healthy weight and engage in regular physical activity to reduce their risk of breast cancer and other health problems. Additionally, regular breast cancer screening, such as mammograms, can help detect breast cancer early when it is most treatable. 
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Key Takeaways

<ul>
	<li>Obesity is a major risk factor for breast cancer, especially in postmenopausal women.</li>
	<li>Excess body fat can cause hormonal imbalances that increase the risk of breast cancer.</li>
	<li>Obesity can also lead to inflammation, which can promote the development of breast cancer.</li>
	<li>Obese women are more likely to have larger tumors and more aggressive forms of breast cancer.</li>
	<li>Obesity can reduce the effectiveness of breast cancer treatment and increase the risk of recurrence.</li>
	<li>Losing weight can reduce the risk of developing breast cancer in postmenopausal women.</li>
	<li>Maintaining a healthy weight through a balanced diet and regular exercise can reduce the risk of breast cancer.</li>
	<li>Obese women may have difficulty detecting breast cancer through self-examination or mammography.</li>
	<li>Breast cancer survivors who are overweight or obese have a higher risk of recurrence and lower survival rates.</li>
	<li>Addressing obesity through lifestyle changes and medical interventions can improve overall health and reduce the risk of breast cancer. 
	&nbsp;</li>
</ul>