Possible Clues:

• Start of a fitness motto
• Half a fitness motto
• '___ or lose ...'
• "Can you __ in a sentence?"
• New Pornographers song to play before you lose it?
• Fitness motto opening
• Fitness mantra opening
• The Tragically Hip "___ all up, don't save a thing for later"
• '___ wisely'
• Start of a brain health adage