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Nicotinamide mononucleotide (NMN) is a popular anti-aging supplement, but there are concerns about its safety and effectiveness. Nanoparticles have many useful properties and applications, but may also be toxic. Wearing face masks for long periods may expose people to unsafe levels of carbon dioxide. Social media use can negatively impact learning, social interactions, and sleep in university students. Plants emit informative sounds when under stress. Human taste preferences have evolutionary origins. Coastal engineering is important for protecting shorelines from storms and sea level rise. Neurobiology research helps explain the workings of the brain. Preterm infant care varies greatly between hospitals. Simulation training improves neonatal resuscitation skills. Extramammary Paget’s Disease is a rare skin condition needing more research. Emerging imaging techniques improve cardiovascular diagnosis. Literature reviews are a useful research methodology when done systematically.

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