i 'm really said . i 'm missing my youthful vigor . your youthful vigor ? you think you 're too old now ? you 're only too old if you allow yourself to be . my girlfriend 's 90-year-old grandfather was a full-of-life wwii vet who lit up the room when he came in . of course , you 're not as physically active , but you have to learn to utilize your life in different ways . yeah , i just do n't have the energy i need to do things i want to . well , maybe it 's an opportunity for introspection . for you to take time out of your day to think about what you need and want , and what are the best ways to achieve that . maybe you need a better diet , or sleep schedule , or meditation , or an exercise routine . sometimes you have to spend energy to feel energized . it 's a slow process in the beginning , but it can be life-changing .
Lack of motivation and energy due to aging.