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| Nylon cooking bags, plastic-lined cups can release nanoparticles into liquids Posted: 21 Apr 2022 12:41 PM PDT Nylon cooking bags and plastic-lined cardboard cups are conveniences many people rely on, but a new study suggests that they are an underappreciated source of nanoparticles. They report that the plastic in these products release trillions of nanometer-sized particles into each liter of water that they come in contact with. That sounds like a lot, but the team notes that these levels are under the regulatory limits for consumption. |
| Designing the perfect piece of chocolate Posted: 21 Apr 2022 11:11 AM PDT We like some foods, and dislike others. Of course, the way food tastes is important, but mouthfeel, and even the sound that food makes when we bite it, also determine whether we enjoy the eating experience. Is it possible to design edible materials that optimize this enjoyment? Physicists and food researchers show that indeed it is. |
| Cortisol in shelter dog hair shows signs of stress Posted: 21 Apr 2022 10:09 AM PDT Despite the good care, a shelter can be a stressful environment for dogs. Researchers investigated if the amount of the hormone cortisol in hair indicates the levels of stress that dogs experience before, during and after their stay in the shelter. |
| Intense exercise while dieting may reduce cravings for fatty food Posted: 21 Apr 2022 06:40 AM PDT In a study that offers hope for human dieters, rats on a 30-day diet who exercised intensely resisted cues for favored, high-fat food pellets. The experiment was designed to test resistance to the phenomenon known as 'incubation of craving,' meaning the longer a desired substance is denied, the harder it is to ignore signals for it. The findings suggest that exercise modulated how hard the rats were willing to work for cues associated with the pellets, reflecting how much they craved them. |
| For cooperative teams, modesty leaves the best impression Posted: 21 Apr 2022 06:40 AM PDT People may forgo displaying luxury brands and other signals of status when they want to convince others that they will collaborate well with a team, as people who signal their wealth and social status could be perceived as uncooperative, according to new research. |
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