Miguel Hernandez University of Elche

Early-life adversity, such as separation from the mother, can alter the neurological functioning of mice, causing some to experience panic and anxiety later in life. A study shows that these changes can be passed on for at least two generations and that inhalation of a drug, the diuretic amiloride, can reverse them. According to the authors, this treatment could be used in the future to alleviate panic disorders and related conditions in humans. The results are published in the journal Science Advances.

An international team has discovered a new type of molecular fossil in sedimentary rocks from the mid-Proterozoic - which spans from 2.5 billion to 542 million years ago. Protosteroids, a type of lipids found in abundance in those rocks, indicate that eukaryotes were a dominant life form in aquatic environments between 1.6 billion and 800 million years ago, the authors explain in Nature. The finding would confirm the theory of Nobel laureate Konrad Bloch, who predicted the existence of these primordial molecules. 

A few weeks ago, the European Food Safety Authority (EFSA) said that exposure to bisphenol A through food is a risk to human health. The agency recommended a much lower tolerable daily intake dose than it had its own previous recommendations. In this explainer, we review key facts and documents to cover this issue--which will continue to make the headlines in months and years to come.  

In 2018, a regulation was introduced in Scotland that establishes a minimum sale price for alcoholic beverages, proportional to the amount of alcohol they contain. A study has analysed the health impact of this measure. According to the authors, alcohol-related mortality has decreased by 13% since then, especially among the most disadvantaged socio-economic classes. The results are published in the journal The Lancet.

Previous research has shown that coffee drinking is associated with a lower risk of cardiovascular disease, but most are short-term, observational studies - they describe associations without being able to determine cause and effect. Research published in BMJ Medicine uses another method (Mendelian randomisation) to study potential causal relationships between caffeine levels in plasma and cardiovascular health, using genetic variants in nearly 10,000 people who participated in long-term studies. Higher genetically-predicted caffeine concentrations in plasma were associated with lower body-mass index and fat mass and a lower risk of type 2 diabetes. In addition, the research shows that 43% of the protective effect of caffeine on the risk of type 2 diabetes was influenced by a reduction in body mass index.

Available studies show no difference in the risk of different types of fracture between those who take calcium supplements and those who do not, according to a report by the Iberoamerican Cochrane Centre via Nutrimedia. According to the report, these supplements have side-effects and do not provide benefits in the general population and are therefore only recommended for people living in residential homes or other institutions.   

In an interview on TV3's Els Matins, the Catalan government's health minister Josep Maria Argimon explained that they are preparing a regulation to ban smoking on bar terraces and make them "smoke-free spaces". They are also considering adding canopies and the entrances and exits of schools to the ban.

The draft Animal Protection Bill has just been approved by the Council of Ministers, awaiting ratification in Congress. The authors consider that the text includes improvements compared to its first version, but consider that it still contains negative aspects.

Research conducted on more than 25,800 healthy adults aged 50 and older in the United States concludes that taking vitamin D supplements does not reduce the risk of bone fractures. The study is published in The New England Journal of Medicine.

The journal JAMA today publishes several articles, along with an editorial, in which the US Preventive Services Task Force recommends against the use of vitamin supplements to prevent cancers and cardiovascular disease.