Does age matter if one wishes to apply for a PhD studentship? I've always wished to have further studies after my masters, but looks like at 40 years of age, most research groups see me as too old to be enrolled. I do still feel I have still my brains properly functioning, and ambitious to pursue advanced work. How could I convince my prospective supervisors that, chronogical age has nothing to do with obtaining knowledge. I've tried though, but mostly younger scientist are selected for all the openings. Its very frustrating.

Keep trying. 40 is not old at all. You have valuable work experience in addition to maturity that many younger people may lack.
I will start my PhD at 35. I know several people who started their PhDs at 40 or more. Dont be discouraged by some idiots.

This age thing seems to be a problem everywhere ( or so I read).
I am 32 and want to get back to academics, do a masters and then possibly a PhD. Have good work experience related to my research interests.
Would you say I would be risking my livelihood if I get back to studies till say I'm 38? My field would be signal processing.
What exactly is the situation regarding mature age PhDs?

You'd need to speak to academics in your field to get an idea of what risks you'd be taking with your career. The probability is that where a Masters degree may well help you to gain promotion or expand your career horizons in some other way following it up with a PhD may not be so usefull (when you balance the reduction in income and work experience during this time).

Make enquiries about relevant masters courses and ask the tutors for their advice whilst you're doing it.

You'd need to speak to academics in your field to get an idea of what risks you'd be taking with your career. The probability is that where a Masters degree may well help you to gain promotion or expand your career horizons in some other way following it up with a PhD may not be so usefull (when you balance the reduction in income and work experience during this time).

Make enquiries about relevant