Brandy Hoffman had signed up for the Houston Marathon before. And every time, she found a reason not to start. This year, she finally said yes, and toed the line as a first-time marathoner. Brandy is a wellness coach with DLDNation, known for helping women do hard things and chase big goals. But this time, the work was personal. When the miles got heavy, she leaned on something unexpected: the voices of her family, sent through an app called Rally, reminding her why she started. And at the...