There are many examples that a person, when waking up with a smile, can much better spend his day than the one who will grumble in the morning.
Moreover, if you start the day with a good mood, then only a very large shock will be able to change it.
And the whole point is, according to scientists, that a good mood develops in our body rare hormones of happiness, which are very resistant to psychoemotional disorders. Simply put, when you wake up happy morning and a new day, the body seems to remember this setting, and tries to stick to it all day.
Therefore, even if you do not want to laugh today from the first sun rays, then just thank life for giving you another chance to live a new day the way you want.
Human health depends very much on his mood, which should always be on top. And if something does not work out as planned, then you should not get upset, make the right conclusion and continue on your way to happiness.