Your are not lazy but you may be depleted.
It is after work, and you are at an intersection. Turn right, and you go to the gym.  Turn left and you head home.  You hit the turn signal.  Home it is.
You tell yourself you are lazy and weak.  But you are not, and a new study explains why.  Recent research suggests that self control is a resource, rather than a character trait.
If you spend your morning talking yourself out of having a burger and fries for lunch, or are focused on completing a big work project, it is natural not to have the drive left over to exercise at the end of the day.
Try these five tips:
1.  Focus on fun
2.  Exercise in the a.m.
3.  Reward yourself before you begin
4.  Turn on the tunes
5.  Take a quick snooze