C'est un phénomène extrêmement rare appelé superfécondation hétéropaternelle. Il survient lorsqu'une femme libère deux ovocytes au cours du même cycle et qu'elle a des rapports sexuels avec deux hommes différents dans une période de quelques jours. Chaque ovocyte peut alors être fécondé par un spermatozoïde provenant d'un homme différent. Le résultat est une grossesse gémellaire dans laquelle chaque jumeau possède un père biologique différent. Ce phénomène est exceptionnel, mais il a été confirmé par des analyses génétiques dans plusieurs cas rapportés dans la littérature médicale. Il ne concerne que les jumeaux dizygotes issus de deux ovocytes et de deux spermatozoïdes distincts. #medecine

⚡💡 Electricity isn’t just about turning on a light. It can save lives, improve health and create opportunities. 🌍 Today, 655 million people around the world still live without electricity, while 2 billion people cook with wood, charcoal or kerosene, filling their homes with harmful smoke. 🏠 Household air pollution from these fuels is linked to around 3 million deaths every year. 🌱 Renewable energy now provides *more than 30% of the world’s electricity*, and solutions like off-grid solar and mini-grids are bringing clean, affordable power to more communities. *What can you do?* ✅ Save energy where possible. ✅ Choose energy-efficient appliances and LED bulbs. ✅ Support clean cooking and renewable energy initiatives in your community. ✅ Spread awareness that access to clean, reliable energy is about more than convenience. It’s essential for better health, cleaner air and a brighter future for everyone. ⚡ Clean energy powers healthier lives. Find out more ➡️ https://www.who.int/news/item/24-06-2026-655-million-people-still-living-without-electricity-underscore-urgent-need-to-deliver-on-universal-energy-access-target

🌡️ Heat can be dangerous, but a few simple steps can protect you and your loved ones. 🥵 When temperatures rise, your body has to work harder to stay cool. Too much heat can lead to heat exhaustion or even life-threatening heatstroke, especially for older adults, young children, pregnant women and people with heart, lung or kidney conditions. *Beat the heat with these simple tips:* ✅ Drink water regularly (don’t wait until you’re thirsty!) 🧢 Wear light, loose-fitting clothes and a hat. 🌳 Stay in the shade or indoors during the hottest hours of the day. 🚿 Cool down with a cool shower or a damp towel. 🏠 Keep your home cool by closing curtains during the day and opening windows at night. 👶 Never leave children or pets in parked cars – not even for a minute! ❤️ Check on older relatives, neighbours and anyone living alone. ⚠️ Feeling dizzy, confused, nauseous or extremely hot? These could be signs of heat illness. Move to a cool place, drink water and seek medical help if symptoms are severe. 💙 Stay cool, stay hydrated and look out for one another! Learn more ➡️ https://www.who.int/initiatives/initiative-against-extreme-heat-and-health-risks-in-workplaces-and-major-events/tips-for-keeping-cool

Junior personnel medical

Physiopathologie du pneumothorax ??? #physiologie

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