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BMJ Group


Female sex and higher education linked to escalating prevalence of obesity and overweight in Africa

The prevalence of overweight and obesity in Africa has surged, with a significant increase in obesity over the past two decades. Women are nearly five times more likely to be obese than men, while those with tertiary-level education are three times more likely. The study's findings highlight the need for targeted public health interven...

SourceBMJ Group·JournalBMJ Global Health·TypeObservational study·DateJan 13, 2026

Autumn clock change linked to reduction in certain health conditions

A study found that the week after the autumn clock change is associated with a reduction in demand for NHS services for anxiety, cardiovascular disease, depression, and psychiatric conditions. However, there is little evidence to suggest that the spring clock change has any short-term effect on health conditions.

SourceBMJ Group·JournalThe BMJ·TypeObservational study·DateDec 17, 2025

Living in substandard housing linked to kids’ missed schooling and poor grades

Research published in the Journal of Epidemiology & Community Health found that children living in poor quality housing missed more school days and achieved worse test scores than their peers. Improving housing conditions, especially reducing damp and overcrowding, may have significant benefits for child health and school outcomes.

SourceBMJ Group·JournalJournal of Epidemiology and Community Health·DateDec 16, 2025

Concurrent frailty + depression likely boost dementia risk in older people

A large international study of 220,947 participants found that concurrent physical frailty and depression significantly increase the risk of dementia. The interaction between these two factors contributes approximately 17% to the overall risk, while individual associations were found for frailty (2.5 times higher risk) and depression (...

SourceBMJ Group·JournalGeneral Psychiatry·TypeObservational study·DateDec 16, 2025

Heavy energy drink intake may pose serious stroke risk, doctors warn

A case report warns that heavy energy drink consumption may pose a serious stroke risk due to high caffeine and sugar content. The study highlights the potential cardiovascular risks associated with energy drinks and proposes increased regulation of sales and advertising campaigns to protect public health.

SourceBMJ Group·JournalBMJ Case Reports·TypeCase study·DateDec 9, 2025

Health impacts of eating disorders complex and long-lasting

A large tracking study found that eating disorders are associated with higher risks of poor physical and mental health, as well as premature death, persisting for years after diagnosis. The risks are highest within the first 12 months, but these heightened risks remain high for years afterwards.

SourceBMJ Group·JournalBMJ Medicine·TypeObservational study·DateNov 18, 2025

E-cigarettes compromise children’s human rights

Experts argue that e-cigarette regulation should prioritize children's best interests, citing the WHO Framework Convention on Tobacco Control and the UN Convention on the Rights of the Child. The authors recommend strict measures to reduce e-cigarette appeal, availability, and affordability among children.

SourceBMJ Group·JournalThe BMJ·TypeCommentary/editorial·DateNov 12, 2025

Expression of concern placed on research paper: Prevention of acute myocardial infarction induced heart failure by intracoronary infusion of mesenchymal stem cells

A clinical trial published by The BMJ raised concerns over data irregularities, age criteria violations, and undeclared conflicts of interest. The BMJ has placed an expression of concern on the paper and will investigate fully with institutions and regulatory authorities as necessary.

SourceBMJ Group·JournalThe BMJ·DateNov 12, 2025

Greenness linked to fewer hospital stays for mental health conditions

A recent analysis of data from seven countries found that higher levels of greenness are associated with a 7% reduction in hospital admissions for all cause mental disorders. The protective effect increases with greater exposure to greenness, suggesting that urban design and health policy can be improved to protect mental health.

SourceBMJ Group·JournalThe BMJ·TypeObservational study·DateNov 5, 2025

Significant variations in survival times of early onset dementia by clinical subtype

A study of 12,490 dementia cases found significant variations in survival times among early onset dementia patients by clinical subtype. The study revealed that those with frontotemporal dementia or Lewy body dementia had the shortest survival time, while Alzheimer's disease and vascular cognitive impairment had longer average survival...

SourceBMJ Group·JournalJournal of Neurology Neurosurgery & Psychiatry·TypeObservational study·DateNov 4, 2025

Voting behaviour in elections strongly linked to future risk of death

Research suggests that voting participation is strongly associated with reduced mortality risk compared to non-voter status. This association holds true even after adjusting for education level, indicating that voting may be a stronger predictor of future death risk than education.

SourceBMJ Group·JournalJournal of Epidemiology and Community Health·TypeObservational study·DateNov 4, 2025

Antibiotics linked to lower risk of complications after obstetric tear

A clinical trial found that antibiotics within 24 hours of an obstetric tear can significantly reduce the risk of clinically relevant wound complications. The treatment group experienced fewer complications and reported better wellbeing compared to the placebo group. This finding supports the use of prophylactic antibiotics in routine ...

SourceBMJ Group·JournalThe BMJ·TypeRandomized controlled/clinical trial·DateOct 29, 2025

World Health Organization’s priorities shaped by its reliance on grants from donor organisations such as the Gates Foundation

The World Health Organization's (WHO) priorities are skewed by its reliance on donations from the Gates Foundation, which has directed over half of its $5.5 billion in grants towards vaccine-related projects and polio. In contrast, non-communicable diseases and health systems strengthening remain underfunded.

SourceBMJ Group·JournalBMJ Global Health·TypeData/statistical analysis·DateOct 28, 2025