Preparing a home cooked meal at least once a week may cut older people’s risk of dementia by 30%, suggests research published online in the Journal of Epidemiology & Community Health.  And this risk may be 70% lower in older novice cooks with few culinary skills, the findings indicate.

Maternal deaths rise by around 11% in countries that rely on US aid following a switch from a Democratic to a Republican administration, suggest the findings of a data analysis published in the open access journal BMJ Global Health. This is equivalent to around 45 additional deaths for every 100,000 live births, eroding a fifth of the decline in global maternal deaths that has been achieved since 1985, conclude the researchers.

An MIT-led team developed a framework for creating “humble” AI systems that reveal when they are not confident in their medical diagnoses or recommendations, and encourage users to gather additional information when the diagnosis is uncertain.

Psychosocial stress is a major contributor to hypertension and cardiovascular disease, according to a new commentary published in Nature Reviews Cardiology. The article reviews decades of scientific evidence showing how chronic stress affects cardiovascular biology and examines research on the Transcendental Meditation technique as a potential strategy for reducing stress-related cardiovascular risk.