Read the following article and answer the question.

It 's been so long since I ' ve really jogged . Never felt like this since 8 mths ago , when I really run and enjoy , think and sweat . I totally have the strength to want to jog more today . I had 3.2 km after so many mths of lazyness .

What may have happened before they started jogging again ?
They realized they were being too lazy .