“Mae yna rai camau syml sy’n bosibl eu cymryd i sicrhau bod plant a babanod, pobl hŷn a’r rheini â chyflyrau iechyd hirdymor, yn enwedig y rheini â chyflyrau ar y galon a chyflyrau anadlol, yn cadw’n iach.
“For children and babies, older people and those with long term health conditions, especially those with heart and breathing conditions, there are some simple steps to take to stay healthy.