But new research
shows that many well-known effects of ageing may start decades before
our twilight years.
scientists, our mental abilities begin to decline from the age of
27 after reaching a peak at 22.
studied 2,000 men and women aged 18 to 60 over seven years. The
people involved – who were mostly in good health and well-educated
– had to solve visual puzzles, recall words and story details
and spot patterns in letters and symbols.
are often used to diagnose mental disabilities and declines, including