High RAM usage is normal; it's a sign of macOS optimizing ... the graph and readings at the bottom of the window: “Physical Memory” is how much total memory your Mac has available.

Engaging in regular physical exercise has a significant impact on your cognitive function, particularly your working memory.

The wonderfully punny Space-Time tool records physical memory usage, time spent in user space vs. kernel space and even threads and subprocesses created. These words may not mean much to some ...