In a recent interview for the New York Times, Lisa Feldman Barrett, Professor of Psychology at Northeastern University in Boston, offered some advice to older people to help them keep their cognitive skills as finely tuned as possible.
Challenge yourself, she urged, to learn new things on a regular basis – but don’t just do so casually. Study any new topic hard, until you feel tired, stymied and frustrated. This level of exertion, she added, is associated with increases in the ease of communication within the brain and, as a result, cognitive skills will be enhanced.
Her advice is based on a study of “superagers”, individuals 65 years or older, whose cognitive skills are as acute as the average 25-year-old. Barrett believes that what sets superagers apart is their ability to use the unpleasant feelings they experience when challenging themselves as a signal to keep going, rather than as a warning to stop and rest.
While she provides convincing data to prove how cognitively young these superagers are, I’m not sure her conclusion about why this is so gives the whole picture.
Are superagers simply those who ignore, even welcome, the pain and frustration that comes with intense mental effort? Or is there some other reason why they spend so much time and effort challenging themselves?
This is important, because if the only way to maintain youthful cognitive skills is to expose ourselves regularly to pain and frustration, it doesn’t make old age look particularly inviting.
Put your brain to the test
To get a baseline measure of your cognitive performance, try the Cambridge Brain Sciences 10-minute online tests.
These computerised tests measure verbal ability, reasoning and short-term memory. You can also see how your cognitive performance changes as a result of the things you do every day by keeping track of indicators such as sleep, activity and stress.
The same argument has been put forward with regard to physical ageing. Not long ago, many advocated HIIT – High Intensity Interval Training, exerting yourself to your maximum capacity, interspersing your effort with short periods of rest – as a way to improve cardiovascular function and lose weight.
HIIT does appear to help in this way, as David Swain and Barry Franklin at Old Dominion University in Virginia found. However, many of us find such intense workouts demotivating and, for a few, they may even be dangerous.
Now research is emerging – for example, Dr Jean-Philippe Walhin’s study at the University of Bath – to suggest that LISS, or Low Intensity Steady State (working out within your aerobic zone) may be just as effective as HIIT for weight loss. Certainly, it’s more enjoyable.
And “enjoyable” is the key. If what you’re doing is enjoyable, you’re more likely to keep working hard at it – probably without even noticing any discomfort.
This is a double win, because research such as Ed Diener and Micaela Chan’s study at the University of Illinois shows that subjective wellbeing – feeling satisfied with your life and experiencing few if any negative emotions – is associated with better health and a longer life.
Making yourself work until you’re exhausted and frustrated holds little appeal. On the other hand, finding an activity you love so much that you don’t even notice when you’re pushing yourself hard seems a far more attractive way to keep your brain active as you grow older.
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