You just closed your windows and are now short of breath from all the heaving and pulling.
Now, remember the days when closing your windows was so easy?
Those good gone days you never felt all your strength dissipating into thin air after closing or opening your windows.
You miss those days, don’t you? They do not have to be memories. The only reason your windows have become difficult to function properly is that you have got a busted hinge(s)
Here are other telltale signs of needing new hinges or reparation of the old one;