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BMJ Group


Physical fitness of transgender and cisgender women is comparable, current evidence suggests

A pooled data analysis of 52 studies involving 6485 people found that transgender women have similar upper and lower body strength, cardiorespiratory fitness, and muscle mass compared to cisgender women. However, their physical fitness is comparable despite greater muscle mass 1-3 years after hormone therapy.

SourceBMJ Group·JournalBritish Journal of Sports Medicine·TypeSystematic review·DateFeb 3, 2026

Air ambulance pre-hospital care may make surviving critical injury more likely

A study analyzing 3225 trauma patients in South East England found that air ambulance pre-hospital care significantly improved survival rates, with 2125 patients exceeding 30-day survival. Those most likely to benefit were severely injured patients with moderate probability of survival, who unexpectedly survived for 30 days.

SourceBMJ Group·JournalEmergency Medicine Journal·TypeData/statistical analysis·DateFeb 3, 2026

Natural ovulation as effective as hormones before IVF embryo transfer

A clinical trial found that natural ovulation before frozen embryo transfer is as effective as hormone treatment in achieving a healthy baby by IVF, with a lower risk of maternal complications. The study involved 4,376 ovulatory women and showed similar outcomes for birth weight and newborn complications.

SourceBMJ Group·JournalThe BMJ·TypeRandomized controlled/clinical trial·DateJan 21, 2026

Long term use of anti-acid drugs may not increase stomach cancer risk

Researchers found no association between long term use of proton pump inhibitors and increased risk of stomach cancer. The study, which analyzed data from five Nordic countries over 26 years, suggests that patients needing long term proton pump inhibitor therapy may not need to worry about a higher risk of stomach cancer.

SourceBMJ Group·JournalThe BMJ·TypeObservational study·DateJan 21, 2026

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