Dogs have walked beside people for thousands of years, acting as guide, helper, and companion. Now, researchers at Purdue University want to find actual scientific proof that having a dogs can, in some situations, help people deal with mental stress, especially in cases of PTSD. The only question this writer has is, who needs a study to prove that?

http://www.militarytimes.com/story/military/benefits/health-care/2015/05/10/ptsd-service-dogs-va-perdue/70944650/