Mobile Phones/ PDA making us dumb?

Research shows that in today's society where mobile phones and PDAs are becoming life's necessity and can really make some of us become.. well.. dumb.

According to the statistics, people needs to remember tonnes of passwords, pins, bank accounts no., etc. to get by their daily lives. Most people (in fact more than half of the 3000 people surveyed) just rely on a single password for almost every application they use.

It seems that we're relying on technology to help us remembers things such as passwords, dates, appointments, schedules... so much that we kinda let our brain takes the back seat.

Professor Ian Robertson, a neuropsychology expert based at Trinity College Dublin who carried out the study, said: "But the less you use of your memory, the poorer it becomes. This may be reflected in the survey findings which show that the over 50s who grew up committing more to memory report better performance in many areas than those under 30 who are heavily reliant on technology to act as their day to day aide memoir."

So is it time to re-train our brains to memorize stuffs? or play any brain stimulating games perhaps?