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What Really Disappears When You Lose Weight on GLP-1 Drugs?

Hand Holding Blue GLP-1 Semaglutide Ozempic Pen Close UpMost weight lost with GLP-1 obesity drugs came from fat, while relative muscle mass was largely preserved. GLP-1 obesity drugs can lead to substantial weight loss, but an important question is what the body is actually losing. New research presented at the European Congress on Obesity (ECO2026) suggests that 80-85% of weight lost during treatment [...]
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Après 65 ans, ces 4 minutes d’exercice par jour peuvent faire une vraie différence, selon des chercheurs

Quatre exercices, trente secondes chacun, une fois par jour. Des chercheurs américains ont testé cette routine minimale auprès d'adultes de plus de 65 ans et rapportent des gains de force, de mobilité et de stabilité après trois mois. Il reste à comprendre ce que signifie exactement la formule...

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Vous êtes peut-être plus musclé grâce à Néandertal : ce gène vieux de 47 000 ans pourrait tout expliquer

Environ 270 grammes de muscle supplémentaires par copie héritée. Une variante génétique venue de Néandertal modifie la réaction des cellules à l'hormone de croissance. Presque tous les Néandertaliens la possédaient contre 10 % des humains actuels, avec des écarts considérables selon les...

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Neanderthal Gene Still Shapes Muscle and Jaws in Some Living Humans

Velazquez-Arcelay et al. found that genetic material from Neanderthal ancestors may have contributed to the propensity of some people today to be early risers, the sort of people who are more comfortable getting up and going to bed earlier. Image credit: Holger Neumann / Neanderthal Museum.

Neanderthals vanished roughly 42,000 years ago, but a piece of their biology appears to be quietly at work in some people today, according to a new study led by scientists from the Max Planck Institute for Evolutionary Anthropology.

The post Neanderthal Gene Still Shapes Muscle and Jaws in Some Living Humans appeared first on Sci.News: Breaking Science News.

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The Surprising Chocolate Trick That Could Boost Your Gym Performance

Fitness Diet Hand Holding Broken Dark ChocolateResearchers found that smelling chocolate before and during resistance exercise may subtly change how the brain responds to effort and appetite. Halfway through a difficult leg workout, most people would not expect the smell of chocolate to help them complete more repetitions. Yet a study published in Frontiers in Physiology suggests that exposure to dark [...]
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Do Collagen Supplements Really Work? Massive New Study Reveals the Truth

Woman Holding Collagen Supplement CapsuleCollagen supplements may help with some skin, joint, and muscle outcomes, but current evidence is uneven and still limited. Collagen supplements have become some of the wellness industry’s most popular products, with claims that they can support smoother skin, healthier joints, and more. But do they actually work? A large new evidence review, which combined [...]
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Voici pourquoi la lutte contre Alzheimer pourrait passer par les muscles plutôt que par le cerveau selon une étude

Et si le secret pour préserver la mémoire se cachait dans nos biceps plutôt que dans nos neurones ? Une étude publiée en 2025 dans la revue Aging Cell bouscule les certitudes sur Alzheimer. Les muscles pourraient envoyer au cerveau des signaux protecteurs capables de ralentir le déclin cognitif.

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