But even the best-trained runners are bound to experience a range of physiological and psychological changes.

FORBES: Was The Tel Aviv Marathon Really Too Hot To Handle?

Typically, the majority become convinced during the second stage and therefore the psychological background changes.

FORBES: Deleveraging Bites On Both Sides Of The Atlantic

The study, published in the journal Circulation, is the strongest evidence yet that psychological as well as physical changes can influence coronary heart disease.

BBC: Depression may boost heart risk

Instead, gold now has an indirect relationship with the U.S. dollar as the price of gold in U.S. dollar terms changes as a result of a variety of economic and psychological factors.

FORBES: What Will Influence The Price Of Gold In 2013?