Addition of rosmarinic acid at a mere 0.1% reduced the amount of sunscreen needed to protect the skin, increased the sun protection factor by more than 41% and combined photoprotection with antioxidant activity. The innovation would reduce the volume of chemical substances discharged into the environment.

A review of the literature shows that 15% of articles published between 1960 and 2021 focused on only ten species, while no articles at all were published on almost 40% of all species. Research efforts tend to be biased toward large-bodied animals and species native to wealthier countries, among other factors that should be taken into consideration when planning future studies, according to the authors.

This conclusion, presented by Brazilian researchers in the journal Scientific Reports, is based on a systematic review of clinical trials held to investigate the effect of strength training on blood pressure in hypertensive patients. All age groups benefited, but the positive effects were most evident in patients aged 50 or less.

Among the health problems developed or aggravated by Covid-19, those that affect neurological and respiratory functions draw special attention from specialists. Considering several studies that show the adverse effects of Covid-19 on human autonomic functions, which are those regulated by the Autonomic Nervous System (ANS), a recent Brazilian study has demonstrated that the use of non-invasive brain stimulation was capable of regulating the ANS and increasing the oxygen saturation in patients with Covid-19 admitted to a semi-intensive care unit.

Scientists at a FAPESP-supported research center combined substances extracted from fruit residues and egg white to package nanoparticles of anthocyanin, a plant pigment with antioxidant action. This nanoencapsulation prevents breakdown of the molecule and lets a larger amount reach the gut, where it is absorbed.