In our quest for productivity and convenience, we often pick up habits that feel harmless but may be silently ageing our brains.

While wrinkles and grey hair are visible signs of growing older, cognitive decline can creep in unnoticed, years before it becomes obvious.

Brain ageing doesn't wait until retirement.

The Women's Brain Initiative at Weill Cornell Medical College warns that decisions made in your 20s, 30s and 40s can have long-term consequences on memory, concentration and mental sharpness, as brain changes associated with cognitive decline often begin decades before any symptoms appear.  Here are six common habits that could be putting your brain health at risk, and what to do instead: 1. Skipping sleep - The brain fog culprit Sleep isn't just 'nice to have,' it's your brain's housekeeping time.