Stress is known as the silent killer, because it can cause chronic health problems without us even knowing it. This is one of the reasons why we should reduce stress as much as possible. One of the negative effects of stress is hormone imbalance. When we are stressed, our body produces certain anti-stress chemicals to protect itself from the harmful effects of stress. Too much stress can cause our body to produce too many anti-stress chemicals. This can disrupt our chemical balance, which weakens all the systems of our bodies.