Moms and dads, paano niyo sasabihin sa mga ank nyo na meron kayo malala na sakit and making them understand the gravity of it? Especially pag terminal yung sakit like cancer?

I think it depends on how old they are, and how mature they are. Also, you have to base it on how well they've dealt with and handled serious situations in the past if ever. In any case, you just have to empathize and cater you delivery of the news in any way that you see fit.