In my experience as a 60 year old, I can recognise cognitive decline in myself compared with younger me. Examples include finding it hard to remember language c

In my experience as a 60 year old, I can recognise cognitive decline in myself compared with younger me. Examples include finding it hard to remember language constructs and APIs, and taking longer to navigate window systems and hierarchical menus. I suspect there are maths equivalents that would impact problem solving performance. This is in addition to changes in lifestyle and life perspectives that have changed the way I prioritise my tasks and interests.