These body rhythms hold true regardless of how much you've slept or how recently you've eaten.

WSJ: Your Body's Best Time for Everything

If you live there or you have visited recently you will know how good the public transport is - and how expensive the congestion charge and parking are.

BBC: Which way forward for Britain's car and rail travel?

But recently you could tell how things were going.

BBC: Careers on hold as economy slows

How recently did you see your father, Lisette?

NEWYORKER: I.D.

How much have you heard recently about the Barrett report?

FORBES: Fact and Comment

How do you feel about venture firms recently heavily using marketing or public relations?

FORBES: Douglas Leone: Sequoia Capital Focuses On Entrepreneurs, Not Self Promotion

In case you had any doubts that 37-year-old James Murdoch is worthy of our Names You Need to Know in 2011 project, the young executive recently showed just how tough he can be.

FORBES: James Murdoch Making Threats in BSkyB Fight

Oh - we talked about this as recently as a week ago because I felt that, you know, you never know how - there are these urban myths, you know.

NPR: Ask Amy: Responding to the Thin Envelope