I used to think that every person can concentrate on his/her tasks as long as he/she wants. Because there is an old saying that the peace the heart, the cool the body. I always follow this belief whenever my heart is not so calm. And luckily, it worked everytime unitl today it breaks my scientific point.

This afternoon, I just go to work without sleeping as usual, because I am used to the new time rule now. But I don't know why, i just can't calm down my heart though the weather is really a little hot. I just feel a liitle dazy, just like a fear of facing the hopeless future. And in this situation, I can't focus my mind on anything. This makes me feel bad!

How to pass this difficulty? I have no idea,maybe I will write it down when I find the way out next time!