Excessive mobile gaming is raising concerns about health and sleep, but research from Kyushu University suggests that small changes can help. In a global study involving over 80,000 players, the team found that grayscale visuals and loading delays encourage users to reduce playtime naturally. When combined with a 10-second delay, grayscale reduced daily playtime by 30.8% and retention by 40.4%. The team calls on developers to adopt these insights to create healthier digital spaces.

The explosive growth of electric vehicles, renewable energy integration, and large-scale energy storage systems has placed lithium-ion batteries at the heart of the global transition to sustainable energy. Ensuring their safe, efficient, and long-lasting performance demands sophisticated battery management systems capable of continuously tracking critical states such as state of charge, state of health, aging, and potential faults. While conventional monitoring relies on temperature sensors, voltage-current profiling, ultrasonic probes, or embedded optical fibers, these methods often provide limited multidimensional insights, incur high implementation costs, or struggle with real-time applicability in operational environments. Electrochemical impedance spectroscopy stands out as a particularly powerful technique, offering rich, frequency-dependent information about internal electrochemical processes that reflect battery dynamics under varying conditions. However, traditional EIS measurements using dedicated electrochemical workstations remain confined to laboratory settings due to their expense, bulk, and lack of online capability.