Recently, I noticed that I feel more tired in holiday than week days.

In every weekend, I make some materials or numeric in front of my PC from nine in morning to one in midnight.

But I have kept these works since olden day.

In old days, they were "Linux install" or "device programming" though, now, they become market reports or columns

"What is the change? "

It is my age.

In old days, I believed that I could take a rest in weekend, Now I think that it become difficult to betray both my mind and body at the same time.