The yield on U.S. Treasurys on Tuesday touched 2%, a key psychological level that often prompts investors to dump long-dated bonds and buy risk assets.

WSJ: Perpetual Bond Risk Rises With US Treasury Yields

On a psychological level, this triggers many "want to be alpha males" in society to constantly challenge me, which only makes it worse as I don't take anything from anybody.

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After getting repulsed from the 1.5000 level yesterday, sterling has recharged and is making another attempt to break through this psychological level, or at a minimum, close very near the weekly highs.

FORBES: Euro Teeters, Pound Bulls May Be Exhausted

Under that is the psychological 1500 level with bigger support at 1495.

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Italy's borrowing costs passed the psychological 7% level -- beyond which countries are considered unable to fund themselves -- last November, before dropping back.

CNN: Italy must adapt to survive, Illy boss warns

The majority of people out there believe that The Girl Store has used the appropriate level of psychological impact to get an important message across a wall of indifference.

FORBES: The Girl Store: Is It Too Provocative?

Intensity and duration of these feelings distinguish a normal level of stress from a psychological condition, Kleiman said.

CNN: Postpartum depression: When moms feel out of control

As a result, the child may go on to have a permanently elevated level of stress, with its adverse implications for physical and psychological health.

CNN: STORY HIGHLIGHTS

If player perceives a higher level of control over their character this will in turn lead to strong psychological ownership of the character.

FORBES: Studying Player Commitment To MMORPGs

But they do need a certain level of knowledge and skill in order to have a proper appreciation of the technical and psychological issues facing the person they are mentoring.

ECONOMIST: Idea