Relax Too much stress,which is worry about problems in life, is not good for physical health for example, it makes your blood pressure go up. Now we know more.A scientsat the University of California, San Francisco, studies tress.Some stress is chronic, which means that it lasts a long time for many months or years, Chronic stress can make people old.As people get older, they get gray and hair wrinkles in their skin, and their eyesight and hearing become worse.But chromic stress makes people age-grow old faster.She can now identify bow stress makes peopage.This is normal.It can damage (hurt) the body's DNA.The age ,it can damage learn to relax.