The appropriate dosage of melatonin varies from person to person, and individuals should consult with their doctor to determine the right amount for them. Melatonin is a hormone naturally produced by the brain's pineal gland as part of the circadian rhythm, the body's internal clock that regulates the sleep-wake cycle.
Sunlight inhibits melatonin production, signaling the body to wake up. However, many people turn to melatonin supplements to aid with sleep. David Kuhlmann of the American Academy of Sleep Medicine advises consulting with a healthcare professional for guidance on melatonin use and other sleep supplements.
While not a medical doctor, certified sleep science coach and professional mattress tester with five years of experience, has spoken with medical professionals and attended lectures on sleep aids and supplements. This expert emphasizes that the information provided is not a substitute for medical advice.
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"Avatar: Fire and Ash" continues its global box office dominance, adding $88 million over the Christmas holiday, reflecting the enduring international appeal of the franchise. A24's "Marty Supreme" also made a strong debut, signaling the diverse tastes of global audiences during the holiday season, while established franchises like "Zootopia" demonstrate continued market strength.
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Vernon Morris established the first atmospheric sciences PhD program at a Historically Black College and University (HBCU), Howard University, significantly increasing the number of Black and Latinx PhD graduates in the field. This initiative addresses a critical lack of diversity in atmospheric sciences, with graduates contributing to vital research on airborne particle processes and improving global weather and climate models.
A correction has been issued for a Nature article concerning the derivation of human pluripotent stem cells resembling an eight-cell embryo. The correction clarifies the ethical oversight and approval processes for animal studies, including human-mouse chimera experiments, ensuring adherence to both local guidelines and international regulations like the ISSCR's stem cell research guidelines. This update addresses potential concerns regarding the ethical implications of integrating human stem cells into animal models.
The Nature Podcast's 2025 highlights include a potato pangenome project that simplifies breeding and sequencing new varieties by overcoming the plant's complex genetics. Additionally, the podcast covered a quantum physics conference held on Heligoland, the island where Heisenberg formulated quantum mechanics, and research highlights such as a tiny liquid-manipulating robot and the discovery of ancient Mesoamerican puppets.
A new study reveals that while weight loss improves metabolism in mid-aged mice, it can trigger brain inflammation, potentially impacting cognitive health. This research highlights the complex relationship between weight loss and brain health, suggesting that the benefits of slimming down in midlife may not be as straightforward as previously thought and warrant further investigation.
Move over, Sheldon and Leonard! Real-world physicists are turning science fiction into reality, proposing that fusion reactors could be axion factories, potentially unlocking the secrets of dark matter and sending ripples through the scientific community. This breakthrough, reminiscent of a plotline from "The Big Bang Theory," is poised to captivate audiences with its blend of cutting-edge science and pop culture appeal.
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Brigitte Bardot, the French actress who became a global icon of liberated sexuality in the mid-20th century, has died at 91, according to her animal rights foundation. Beyond her film career, Bardot influenced fashion and culture worldwide, challenging societal norms and leaving a lasting impact on the international perception of French identity. Her death marks the end of an era for European cinema and a figure whose image resonated far beyond the screen.
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