Could I ask the same question to you, Gwyn, please?

A Gwyn, allaf i ofyn yr un cwestiwn i chi, plîs?

Thank you. I've met with the director of public health for the Hywel Dda health board area recently and she has confirmed that a recent survey has shown that 28 per cent of children up to the age of four are overweight. That's 28 per cent - that's an astonishing figure. Another report recently showed that three quarters of children in Britain spend less time in the open air than people in our prisons. Would you agree with me that it would be worth while putting in place a mechanism to monitor children's weight as they go through school and also to monitor their physical activity, as was suggested by Tanni Grey-Thompson last week?

Diolch. Rwyf wedi cwrdd â'r cyfarwyddwr iechyd cyhoeddus dros fwrdd iechyd Hywel Dda yn ddiweddar. Mae hi wedi cadarnhau bod arolwg diweddar wedi dangos bod 28 y cant o blant hyd at bedair oed dros bwysau; 28 y cant - mae hwnnw'n ffigur anhygoel. Mae adroddiad arall yn ddiweddar wedi dangos bod tri chwarter o blant ym Mhrydain yn cael llai o amser y tu fas yn yr awyr iach na phobl yn ein carchardai. A ydych yn cytuno y byddai'n werth chweil cyflwyno mecanwaith i fonitro pwysau plant wrth iddyn nhw fynd drwy'r ysgol, a hefyd i fonitro eu gweithgaredd corfforol, fel yr awgrymodd Tanni Grey-Thompson yr wythnos diwethaf?

I wasn't familiar with the quote, but the challenge for us all is to go beyond the rhetoric, to ensure that it's something that's alive. And we have our internal systems with our members to co-operate on the level of school, consortia, local authority, and national level, and it will be clear that that will have to be a central part of the discussions.

Nid oeddwn i ddim yn gyfarwydd â'r dyfyniad, ond yr her i ni i gyd ydy mynd y tu hwnt i'r rhethreg, i sicrhau ei fod o'n rhywbeth byw. Ac mae gennym ni ein systemau yn fewnol, o ran yr aelodau, er mwyn cydweithio ar lefel ysgol, awdurdod, consortia, ac yn genedlaethol, lle y bydd yn amlwg y bydd yn rhaid i hynny fod yn rhan ganolog o'r trafodaethau.

An interesting point, but it's not quite as easy as that, because we don't have a self-contained prison estate. For example, you'd still to need to buy in, as it were, prison places in England, at a price that England wanted to charge - we'd have no particular control over that. We lack certain high-security prisons as well, so all this has to be examined to make sure that we don't end up with control over prisons, which in principle, actually, I've got no objection to, but end up with a financial deal that's far, far worse. Unlike Scotland and Northern Ireland, we've never had that self-contained prison system. It is something, of course, that we'll have to consider when we look at the devolution of prisons.

Pwynt diddorol, ond nid yw mor hawdd â hynny, oherwydd nid oes gennym ni'r ystâd carchardai hunangynhwysol. Er enghraifft, byddai'n dal i fod angen i chi brynu i mewn, fel petai, lleoedd mewn carchardai yn Lloegr, am bris y byddai Lloegr yn dymuno ei godi - ni fyddai gennym ni unrhyw reolaeth benodol dros hynny. Rydym ni'n brin o garchardai diogelwch uchel penodol hefyd, felly mae'n rhaid archwilio hyn i gyd er mwyn sicrhau na fydd gennym ni, yn y pen draw, reolaeth dros garchardai, nad oes gen i unrhyw wrthwynebiad iddo mewn egwyddor, a dweud y gwir, gytundeb ariannol sy'n llawer, llawer gwaeth yn y pen draw. Yn wahanol i'r Alban a Gogledd Iwerddon, ni fu gennym ni'r system carchardai hunangynhwysol honno erioed. Mae'n rhywbeth, wrth gwrs, y bydd yn rhaid i ni feddwl amdano wrth ystyried datganoli carchardai.