There is hardly anyone on earth who leads a stress-free life these days. While stress can actually make your brain and body sick experts say that not all stress is bad. According to them a healthy amount of stress acts as a kick off and improves performance. However stress reaches the tipping point pretty quick which the experts define as the fight-or-flight response. This happens when the brain gets active to our sympathetic nervous system and initiates several changes that we experience in our mind and body. There are several ways by which stress affects your brain. Find them here.