Walking can elevate a person's mood, lessen feelings of depression and allow a person to think more clearly, he said.

BBC: Quarter of adults walk just an hour a week, survey finds

We need to think more clearly about whether it is more primary care physicians that we need or, instead, more primary care clinicians: nurse practitioners, physician assistants and the like.

FORBES: Solving the Primary Care Physician Shortage by Turning PCPs into Anesthesiologists

It is hard to think of an issue more clearly reserved to state law under constitutional tradition than the definition of marriage.

WSJ: Michael McConnell: The Constitution and Same-Sex Marriage

But what In The City is all about is getting the industry out of London and up to the North so that it can think more clearly about where it is going and who it wants to take along for the ride.

BBC: Manchester band Fear of Music are hotly tipped for success

Doing so not only makes you feel less depressed in a moment-to-moment way, but it helps you think more clearly so that you can tackle your problems more efficiently.

FORBES: The Emotional Cost of a Bad Economy: How to Recover Health and Happiness

In the swirling rumours and jumpiness of Beirut, people seem to think that someone who has followed events from outside the country might be able to read the crisis more clearly.

BBC: NEWS | Middle East | Rumours and violence fuel Lebanon anxiety

If we watched ourselves closely we'd see that we have more energy at some times in the day and far less at others, that we think more clearly in the morning and less so right after lunch and that we tend to feel more emotionally well at one time or another on average.

CNN: Can keeping a routine help control bipolar symptoms?

To think clearly about Europe, we all need to become much more informed about countries like Morocco.

ECONOMIST: European politics