Jill Jones is on a mission to change the status quo of aging. The ISSA-certified personal trainer, owner of Colosseum Gym in New Jersey and co-founder of online platform FitQuo, believes building muscle is the ultimate aging defence. “Strength training should be accessible, sustainable and part of everyday life at any age,” she tells Fit&Well. Article continues below You may like It’s why she launched FitQuo with co-founder Elizabeth Reeder, to help people get stronger, feel more energized and better able to take charge of their health in the gym or at home. Now, after years of working with older adults and beginners, she has realized that a handful of factors underpin longevity. “I’ve found that five things matter most when it comes to aging well,” says Jones. “Not just living longer, but living better.” Start your week with achievable workout ideas, health tips and wellbeing advice in your inbox. 1. Balance and stability “Falls are one of the leading causes of injury in adults over 65,” says Jones. Most are preventable. “Balance is a …