The human brain is primed for negativity. And this negativity bias can trick your brain into overestimating threats and underestimating opportunities. During times of adversity we may feel overcome by fear, worry or anxiety—and we underestimate our capacity to deal with the difficulties we're facing. "In times of personal difficulty, it's easy to feel like you don't have any choices. But how you seize the day is a choice," writes Lee Rhodes. Here, she shares how she learned to face adversity head on and how her personal experience inspired her business.