Commitment issues? (No Time...Not Now, Next Month...I'm Old...etc...)
Even with the best of intentions, exercise motivation fluctuates. it’s not necessarily that some people are more motivated than others. Motivation changes; it’s not static. Some people have weeks when they’re motivated and other weeks when they’re less motivated, even me! So you don't have enough time? Turn 1 hour of exercise into 30 mins of energy burst! Just showing up to the gym is not enough if you fall in that category, your mind state is too "rushed" to be effective at