Beth sy'n gwneud i chi wenu? A beth sy'n digwydd i'n cyrff wrth i ni wenu? Shân Cothi asks listeners what makes them smile, and learns what happens to our bodies when we do. Show more
Discover 11,128,835 listings and 280,384 playable programmes from the BBC
Beth sy'n gwneud i chi wenu? A beth sy'n digwydd i'n cyrff wrth i ni wenu? Shân Cothi asks listeners what makes them smile, and learns what happens to our bodies when we do. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
