stress management breathing techniques

What good relaxation / stress management techniques?
I say relax, stress management. / To reduce my blood pressure. Who has the tips. (Such as breathing exercises …)?
Yoga is fantastic. If you receive books for yoga. Dummies and Mat Set with DVD you will be set. Try to take half an hour. Days. You will wonder how you feel good. In addition, when you feel yourself start bit, do not focus on building it. Stop what you're doing, stand up and stretch and take. 10 deep breathes in deeply and hold for count 4, then let all the air in your lungs. Stress to the wind blow. … And try your luck just chillin. The world does not know you.