Adult weight gain could increase cancer risk

https://www.sciencedaily.com/releases/2016/11/161107113014.htm#.WDy53WcLPac.gmail

    In a longitudinal study conducted by University of Manchester and The Health eResearch Centre the body mass indexes ( BMI ) of 300,000 Americans were measured and recorded over 47 years, between the ages of 18-65.  The participants were then followed for an additional fifteen years to record any cancer diagnoses.  There were approximately one hundred seventy seven thousand men and one hundred eleven thousand women participating in the study.  Overall, researchers found that in both genders, when BMI was increased to beyond a healthy normal level, the risk for cancer was increased.  In men, there was a larger increase, up about 50 % compared to a man who stayed within a normal BMI while women increased by 17%.  Out of the 300,000 participants, 9,400 women and 5,500 men were diagnosed with a form of cancer after the age of 65.  The impact of the study was considered relevant and notable in the terms of there are few studies available that focus on looking at BMI over a lifesoan and not just at one given point.  Overall through the course of adulthood, BMI can change,  it can range and vary greatly. 
    Looking at the results, it would have been helpful to note if the participants had other risk factors such as familial history, environmental influences, or other negative habits that could have also increased the risk for developing cancer.   There are so many factors to consider as to why or how the participants had an increased risk and such a large sample group complicates the findings.   Having a family history of breast cancer and obesity in my immediate family, this was especially interesting to me.  Looking at other research, there are many claims that obesity increases the risk for cancers but few have taken the approach of a longitudinal study with so many participants.  In general the take away should be that maintaining a healthy BMI along with an overall healthy lifestyle will likely aid in reducing the risk of cancer. 

Comments

  1. What kind of cancer does weight gain cause? This article is extremely important because it's seldom to hear that weight gain can increases the risk of cancer. The first thing that comes to mind when people hear weight gain is type 2 diabetes, hypertension, heart disease; etc

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    1. The study generalizes the research and states that obesity is linked to a variety of cancers, naming the most common like bowel, breast, pancreatic, and ovarian cancer. They also generalize keeping a healthy weight as one of the many factors of staying healthy like eating well and exercise. Which to me takes some attention away from the obesity and points to multiple factors or causes

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  2. As Tyshelle mentioned, I am also very interested in learning about what type of cancer is related to weight gain. It is rare to hear that there is a relationship between weight gain and cancer and I think that it is extremely important for people to be more educated on this matter.

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    Replies
    1. I agree and also think that BMI is not as good as a determining factor. Especially for athletes, they will be bigger and the BMI shows that while not actually representing their health.

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