Salt is a hidden enemy in children’s diets. So says the conclusion of a study by researchers from the Complutense University of Madrid, which suggests that over 80 % of Spanish schoolchildren consume excess salt; this is associated to greater risk of high blood pressure, osteoporosis and obesity. According to the authors, we first need to know the sources of dietary salt intake before we can reduce it.
Spanish researchers have analysed the effectiveness of salt on sports performance in triathletes. The athletes who added this supplement to their usual hydration routines during the competition took 26 minutes less to complete a medium-distance triathlon course than those who only used sports drinks.
For the first time, Spanish researchers have detected an unknown interaction between microorganisms and salt. When Escherichia coli cells are introduced into a droplet of salt water and is left to dry, bacteria manipulate the sodium chloride crystallisation to create biomineralogical biosaline 3D morphologically complex formations, where they hibernate. Afterwards, simply by rehydrating the material, bacteria are revived. The discovery was made by chance with a home microscope, but it made the cover of the ‘Astrobiology’ journal and may help us find signs of life on other planets.
Engineers at Carlos III University in Madrid, Spain, have designed an optical sensor that detects how much salt is on road surfaces in real time. This avoids the need to spread the substance excessively, because although this prevents ice from forming on roads, it can also harm vehicles, infrastructure and the environment.