We cannot change evolution's work, but we can alter what we pay attention to (mindful experience ) and how we REACT to "perceived" threat (acceptance).
Evolution has predisposed humans to be on the lookout for danger, even when there may be none (e.g. worry about flying). If we can be mindful and fully experience the present moment, understanding that the anxious thoughts we are having are merely thoughts, then we are able to experience what is happening in a nonjudgmental way.
Practice being mindful throughout the day in different contexts, enjoying each moment rather than ruminating about the past or worrying about the future because THIS MOMENT WILL QUICKLY VANISH AND BECOME A MEMORY. Do you want that memory to be of the past, future, or of what is happening RIGHT NOW?