"Wow, you cut right to the chase," PM Wong told Steve Forbes, chairman and editor-in-chief of Forbes Media.

"What we try to do in Singapore is to have a salary framework for ministers, which is competitive. It will not match the private sector pay, but it is broadly competitive. There will still be a discount, but at least the burden and the financial loss and the hurdle of entering politics is not so great," said Mr Wong.

"I think that the United States has to take a page from your book and say, hey, healthy ageing is really important," said Mrs Biden.

"I will try to speak to your Department of Health," said Mr Ong.

"Good luck with that!" said Dr Biden.

Associate Professor Jeremy Lim explains on the Deep Dive podcast that preventive dentistry could help avoid costly treatments later, and that evidence also links gum disease to an increased risk of dementia and cardiovascular problems.

They called on lawmakers to enact a Clean Air Act and demanded greater transparency over those responsible for the transboundary haze affecting Southeast Asia.

Greenpeace Malaysia says it has identified more than 20 Malaysian and Singaporean companies allegedly linked to plantation fires in Indonesia.