Melissa Bernstein, cofounder of the toy company Melissa & Doug, spent decades hiding her struggles with depression even as she launched and led a booming business focused on bringing joy to children and raised six of her own. ALISON BEARD: So we’re going to get into some dark topics today, but let’s start with the light and success that is your toy company, Melissa & Doug. ALISON BEARD: That’s Melissa Bernstein, co-founder of the toy company, Melissa & Doug and leader of the initiative LifeLines.