5 harmful health impacts of untreated obesity — and why support matters

Obesity is often misunderstood as a cosmetic issue, but it’s a serious medical condition that can affect nearly every system in the body [1]. Defined by a Body Mass Index (BMI) of 30 or higher, obesity is associated with a higher risk of chronic illness, reduced quality of life, and shorter lifespan. But just as importantly — it’s also a condition that’s manageable and treatable with the right support.

At Everwell, we take a compassionate, evidence-based approach to weight management that recognises the whole person — their history, their habits, their challenges, and their health goals. Below, we explore some of the critical health risks associated with obesity — and how early intervention can help.

1. Heart disease and circulatory issues

Obesity is a major risk factor for cardiovascular disease, which remains a leading cause of death [2]. Carrying excess weight increases blood pressure, raises LDL ("bad") cholesterol, and contributes to chronic inflammation. Over time, this can damage the arteries and lead to heart attacks, stroke, and heart failure.

• But here’s the good news: Studies show that even modest weight loss — 5% to 10% of body weight — can significantly reduce cardiovascular risk factors and improve blood pressure and lipid profiles [3].

2. Type 2 diabetes and blood sugar dysregulation

When the body carries too much fat — especially around the middle — it affects how insulin works. This can lead to insulin resistance and, eventually, type 2 diabetes [4].

• Obesity and being overweight are leading risk factors for Type 2 diabetes [5].

• Without management, diabetes can cause complications such as nerve damage, kidney disease, and vision loss — but with the right support, these outcomes can be prevented or delayed.

3. Increased risk of certain cancers

Obesity is linked to an increased risk of multiple cancers, including breast, colon, pancreatic, ovarian, and liver cancer [6]. This is due in part to the way excess fat tissue influences hormones and inflammation, which may promote tumour growth [7].

• Adults who gain less weight as they get older have lower risks of many types of cancer, including colon, kidney, breast, and ovarian cancers [6].

4. Mental health and brain health impacts

Obesity isn’t just about physical health — it deeply affects emotional and cognitive well-being. Many people experience low mood, anxiety, and self-esteem challenges related to weight stigma, social isolation, or body image [8].

• Emerging research also suggests a link between obesity and cognitive decline and mental illness such as clinical depression [2, 9].

• At Everwell, we always approach this topic without judgment and focus on building confidence, self-worth, and a sustainable path forward.

5. Reduced life expectancy

Perhaps the most concerning impact is the effect on lifespan. The data is clear: higher BMI is associated with increased risk of early death [2].

• For example, individuals with obesity have a higher risk of all-cause mortality (early death) compared to those within a healthy BMI range [2].

• But it’s important to remember: change is possible at any stage. Lifespan and health outcomes can improve significantly with a tailored, supported approach.

Final thoughts: Weight is only one part of the story

Obesity is a complex, chronic condition that deserves compassionate, comprehensive care. At Everwell, we don’t just prescribe medications. We offer a clinically led, lifestyle-supported programme in partnership with Unislim, combining nutritional guidance, coaching, movement plans, and medical oversight — including, when appropriate, GLP-1 or dual agonist therapies. We believe in meeting each person where they are, understanding their story, and helping them move forward with safety, confidence, and support.

Ready to Start Your Journey?

If you’re concerned about the health effects of obesity — or simply want to feel more in control of your well-being — Everwell is here to help. Reach out to our team to learn more about how we can support your goals. 👉 Get started

References

1. World Health Organization (WHO). (2021). Obesity and Overweight: Key Facts.

2. Centers for Disease Control and Prevention (CDC). (2022). Health Risks of Overweight and Obesity.

3. Blackburn, G. L., et al. (2001). The effect of weight reduction on cardiovascular disease risk factors. Archives of Internal Medicine, 161(15), 1841-1849.

4. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). (2021). Insulin Resistance and Prediabetes.

5. The Diabetes Prevention Program Research Group. (2002). Reduction in the incidence of type 2 diabetes with lifestyle intervention or metformin. The New England Journal of Medicine, 346(6), 393–403.

6. National Cancer Institute (NCI). (2022). Obesity and Cancer.

7. Deng, T., et al. (2016). Obesity and Cancer: Molecular Mechanisms and Therapeutic Implications. Frontiers in Endocrinology, 7, 73.

8. Luppino, F. S., et al. (2010). Overweight, obesity, and depression: a systematic review and meta-analysis of longitudinal studies. Archives of General Psychiatry, 67(3), 220–229.

9. Rachidi, S., & Wallace, M. B. (2017). The Relationship Between Obesity and Cognitive Decline. Cureus, 9(9), e1679.