Obesity

Overweight and obesity are defined by the WHO as abnormal or excessive fat accumulation that presents a risk to an individuals health.

Overweight and obesity are major risk factors for a number of chronic diseases, including diabetes, cardiovascular diseases and cancer and while it was once an issue only in high income countries, overweight and obesity has now dramatically risen in low- and middle-income countries.Such countries are now facing a "double burden" of disease, for while they continue to deal with the problems of infectious disease and under-nutrition, they are also experiencing a rapid upsurge in chronic disease risk factors such as obesity and overweight, particularly in urban settings.

What is Obesity?

Obesity and overweight have in the last decade become a global problem - according to the World Health Organization (WHO) back in 2005 approximately 1.6 billion adults over the of age 15+ were overweight, at least 400 million adults were obese and at least 20 million children under the age of 5 years were overweight.

Obesity and Fractures

Obesity and Infertility

Obesity and Exercise

Obesity, What Can be Done?

Obesity and Anesthesia

Obesity Epidemiology

Obesity and Periodontitis

Obesity and Skin Problems

Obesity and Diabetes

Obesity and Fast Food

Dieting for Obese Children

See more featured articles »

Obesity in Children

Obesity and Sleep

Obesity and Depression

Obesity and Heart Disease

Obesity and Genetics

Abdominal Obesity and the Metabolic Syndrome

Obesity in Pregnancy

Obesity and Metabolic Syndrome

Obesity and Arthritis

Causes of Obesity and Overweight

Obesity and Sexual Health

What is Body Mass Index (BMI)?

Obesity and Respiratory Disorders

Obesity and Blood Pressure

What is Obesity Paradox?

Obesity Management

Fat Mass and Obesity-Associated Gene (FTO)

Obesity and Stress

Obesity and Cancer

Why is Visceral Fat Dangerous?

Obesity and Hormones

Obesity and Autism

Obesity in Adults

What does Sleeve Gastrectomy Involve?

Latest Obesity News and Research

Five-target drug beats GLP-1/GIP therapy in obese diabetic mice

A Nature study reports a single-molecule GLP-1–GIP–lanifibranor quintuple agonist that targets incretin receptor-expressing cells while activating PPARα/γ/δ pathways. In obese and insulin-resistant mice, the compound reduced body weight, food intake, and hyperglycaemia more effectively than semaglutide or GLP-1R–GIPR co-agonism, while remaining a preclinical finding.

30 Apr 2026

GLP-1 drugs reduce risk of major adverse cardiovascular events

New research has shown that GLP‑1 weight-loss drugs deliver protection against heart attacks, strokes and premature death over a sustained period of time.

30 Apr 2026

Meth use accounts for nearly 1 in 6 heart attacks, California study shows

Methamphetamine (meth) use accounted for nearly 15% of heart attacks for a decade in a northern California study, published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

30 Apr 2026

New screening tool predicts health risks for people living with obesity

A simple tool, developed by researchers at Queen Mary University of London and the Berlin Institute of Health at Charité, could help identify which people living with obesity or overweight are most likely to develop serious obesity-related conditions such as type 2 diabetes and heart disease.

30 Apr 2026

New research shows weight loss is possible without GLP-1

Glucagon-like peptide-1 agonism - GLP-1, common in obesity medicines - is not essential to weight management, according to preclinical research led by Richard DiMarchi and Matthias Tschöp, with funding from their startup company Bluewater Biosciences.

30 Apr 2026

Baby teeth show when metal exposure may affect brain development

The study identifies critical windows of metal exposure via baby teeth, revealing impacts on brain development and behavior in children and adolescents.

30 Apr 2026

Maternal weight before pregnancy may shape toddlers’ development

A nationwide Korean cohort study of 258,367 mother-child pairs found that maternal pre-pregnancy BMI was associated with developmental delay risk in children aged 18 to 36 months. Children of underweight mothers showed modest early risks that later attenuated, while obesity-related risks persisted across developmental domains.

29 Apr 2026

Brief walking breaks help the body control sugar after carb-rich meals

Brief brisk walking breaks during prolonged sitting improved post-meal interstitial glucose responses in healthy adults after carbohydrate-rich meals, with the strongest effects seen in women. Gluteal fat showed a more stable glucose pattern than abdominal fat, suggesting it may help buffer carbohydrate-related glucose rises through depot-specific uptake and lipid-synthesis pathways.

29 Apr 2026

AHA calls for lifelong brain health strategy to prevent cognitive decline

The AHA scientific statement calls for a life-course approach to brain health that integrates cognitive, emotional, behavioral, vascular, environmental, inflammatory, sleep, microbiome, and social factors. It highlights how early-life exposures, mental health, pollution, chronic inflammation, poor sleep, gut dysbiosis, and socioeconomic adversity may shape brain resilience and later-life cognitive decline.

29 Apr 2026

New hybrid molecule uses Trojan horse approach to treat obesity

A team led by metabolism researcher Prof Timo D. Müller at Helmholtz Munich has developed a new approach for treating obesity and type 2 diabetes: a hybrid molecule uses the well-known GLP-1/GIP signalling pathway as a "door opener" and delivers an additional metabolic modulator specifically into the target cells.

29 Apr 2026

Study suggests a U-shaped link between cholesterol levels and mortality among Chinese adults

A new commentary published in Engineering highlights key findings from a large multinational cohort study that re-evaluates cholesterol management for cardiovascular and chronic disease prevention, suggesting a U-shaped association between cholesterol levels and mortality among Chinese adults that challenges the conventional "lower is better" approach.

28 Apr 2026

Rising bowel and ovarian cancer rates in younger adults raise new concerns

Cases of several cancers are rising in England among both younger and older adults, but rates of bowel and ovarian cancer are rising only among younger adults (under 50s), finds research published in the open access journal BMJ Oncology.

28 Apr 2026

Study finds season of entry impacts childhood obesity outcomes

Childhood obesity remains a major health challenge, and effective interventions often depend on more than nutritional advice or exercise plans alone.

28 Apr 2026

VCU study identifies key factors driving risk of second cancers

Risk of developing a subsequent primary cancer varied significantly by age at initial diagnosis, sex, and type of first cancer, according to a study by Oxana Palesh and Susan Hong and colleagues at Virginia Commonwealth University, U.S., published April 28th in the open-access journal PLOS Medicine.

28 Apr 2026

Electroacupuncture promotes weight loss by turning white fat into brown

Globally rising obesity rates pose major health risks, including type 2 diabetes, cardiovascular disease, and certain malignancies.

28 Apr 2026

New scientific statement defines brain health across life

Brain health isn't determined only by genetics or what happens later in life. A growing body of research shows that a range of factors-from mental health and sleep to environment, lifestyle and social conditions-play a powerful role in shaping how the brain functions and ages.

28 Apr 2026

Obesity may leave immune cells stuck in inflammatory mode after weight loss

A new EMBO Reports study suggests that obesity can leave a lasting epigenetic imprint on CD4 T cells, delaying the restoration of adaptive immune balance after weight loss. Using mouse models and human cohorts, researchers linked this immune “memory” to DNA methylation changes, saturated fatty acids, autophagy, and immune senescence.

28 Apr 2026

Lipid pathways driving diabetes and heart disease risk in South Asians

Identifying lipid-linked genetic pathways in Asian Indians offers insights into diabetes and heart disease, crucial for developing ancestry-specific therapies.

28 Apr 2026

Ultra-processed foods linked to poorer attention and higher dementia risk scores

Research shows that higher ultra-processed food consumption may impair attention and elevate modifiable dementia risk, highlighting concerns for brain health.

28 Apr 2026

GLP-1 drugs promise wider health benefits, but experts urge caution on use

GLP-1 receptor agonists are reshaping care for type 2 diabetes, obesity, chronic kidney disease, and obstructive sleep apnea, with evidence for glycemic, weight-loss, cardiovascular, and renal benefits. The review urges nurse practitioners to balance expanding clinical promise with careful prescribing, patient education, monitoring, access advocacy, and vigilance for gastrointestinal, endocrine, pregnancy-related, and rare serious risks.

27 Apr 2026