Philippe Matthews Show Guru Advice, Author Reviews, Tech Reviews, Entertainment News

TODAY’s panel of guys – Chuck Nice, Rick Younger, Ed Watts and David Good – answer viewers’ questions about whether long-distance relationships work and how long women should wait until their boyfriend proposes. (TODAY)

Dear EarthTalk : Is it true that gas furnaces cost less to run and burn cleaner than their oil counterparts? If I make the switch, how long should I expect it to take for me to pay back my initial investment? And are there any greener options I should consider?

Dietitian Tanya Zuckerbrot spoke with Rebecca Jarvis on how long is food still good after the date on the packaging has expired.

Doctors who are interested in measuring life expectancy may now have a simple way to do it — researchers have discovered that walking speed can be a useful predictor of how long older adults live.