Trouble thinking clearly is a growing concern. Researchers have been examining this issue, which is often referred to as brain fog. A significant increase in reports of memory and concentration problems has been found. The rate of these problems nearly doubled in adults under 40 over a certain period.

Further research has been conducted to understand the causes of this issue. Some studies suggest that the trouble may start during sleep, rather than being solely caused by stress or heavy workloads.

More information on this topic is available, including details of studies conducted by researchers at various institutions, such as Yale School of Medicine and the University of California, Los Angeles.