Stress plays a key role in memory loss because it can interfere with your capacity to encode memory. Depending on the type of stress, it can cause acute as well as chronic changes in specific areas of your brain. This can affect short-term memory, long-term memory, explicit memory and implicit memory. The simplest way to reduce stress is by clearing your mind using relaxation techniques, such as deep breathing exercises. They improve blood flow to the brain, relax muscles and put you in a peaceful state of mind. Another great way to relieve stress is to do things that you enjoy doing. Once you learn to control your stress better, you will notice an improvement in your memory and brain power.