Hugs help women face stress, study says. Men, you are out of luck

Hugs can help before a stressful situation, but know that they may or may not always be welcome, experts said.

(CNN)You have a big test, a difficult conversation or a stressful day ahead -- how much of a difference could a hug from your partner make on your state of mind?

A hug can make a big difference for women, according to a new study. Unfortunately, the effect is not as powerful when it comes to men.