Saima S. Iqbal

Dec 11, 2024 | scientificamerican.com | Saima S. Iqbal

Dogs (and some begrudging cats) may be humans’ best friend, but their behavior still often baffles us. For instance, what makes some dogs insatiably hungry? What does it mean if a cat stiffens or swishes its tail? This year science brought us closer to answers for these questions, giving us a peek into the inner worlds of our furry friends. Sweet DreamsOur kitties and pooches experience rapid eye movement—a sleep stage that, in humans, is clearly associated with dreams.

Nov 27, 2024 | scientificamerican.com | Saima S. Iqbal

Municipalities across the U.S. have been safely adding fluoride to their tap water for decades, and reams of data prove the mineral has worked wonders in strengthening enamel and preventing tooth decay. But communities could soon start removing or lowering levels of fluoride in public drinking water as misinformation about its purported harms gains dangerous momentum among media outlets and a growing number of prominent political figures. This month Robert F.

Nov 23, 2024 | livescience.com | Saima S. Iqbal

Every time generative artificial intelligence drafts an e-mail or conjures up an image, the planet pays for it. Making two images can consume as much energy as charging a smartphone; a single exchange with ChatGPT can heat up a server so much that it requires a bottle's worth of water to cool. At scale, these costs soar. By 2027, the global AI sector could annually consume as much electricity as the Netherlands, according to one recent estimate.

Nov 19, 2024 | cerveauetpsycho.fr | Saima S. Iqbal

Généralement, passé les 60 ans, les premiers signes de vieillesse apparaissent. Port de lunettes, d’appareils auditifs, douleurs musculaires ou risque plus élevé de diabète, les exemples sont nombreux. Pourtant, une récente étude publiée dans le journal Nature Aging, suggère que notre corps subirait deux « pics de vieillesse » associés à des changements moléculaires majeurs : à la soixantaine, mais également au milieu de la quarantaine.

Nov 17, 2024 | projektpulsar.pl | Saima S. Iqbal

Istnieje grupa drobnoustrojów, które rozkładają niektóre „niezniszczalne związki chemiczne”Pewna grupa bakterii okazała się skuteczna w niszczeniu bardzo wytrzymałych wiązań węglowo-fluorowych, od których pochodzi nazwa „niezniszczalne związki chemiczne”. To odkrycie rozbudziło nadzieje, że mikroorganizmy mogą w przyszłości pomagać w usuwaniu ze środowiska tych wszechobecnych zanieczyszczeń. Istnieje niemal 15 tys.