While aging, stressors change and so does the ability to deal with stress. Long-term stress can damage brain cells and lead to depression. Stress may also cause memory loss, fatigue, and decreased the ability to fight off and recover from infection. In fact, it is estimated that more than 90% of illness is either caused or complicated by stress. It is not possible to entirely avoid stressful situations but people can learn better techniques to cope with stress. Take care when stressed by getting enough sleep, exercising, and eating nutritious foods. Talk to a loved one or counselor about stress, and try some relaxation techniques, such as circular breathing, yoga, or meditation. Remember to always keep things in perspective – try to accept and adapt to the things that cannot be under control.