4. Nancy must pass her test. She will not be able to go to the movies.

1. Smiling releases wellness-associated chemicals

It all starts with the release of endorphins. Even in a fake smile, the movement of the face, bones and nerves causes the release of this chemical associated with the well-being of the body. Endorphins promote a general general sensation that directly influences your physical and mental health.

2. Smiling boosts the immune system

Because these endorphins released during smiling also stimulate the immune system, capture or stress and the number of immune cells and attacks that fight like infections. This amazing movement of your body improves your resistance to disease.

Smile helps strengthen the immune system

3. Smile relieves physical tension and stress

A good way to relieve physical tension and stress by letting your muscles relax for up to 45 minutes later. For chronic pain sufferers, such as smile-released endorphins are a great way to contain pain, easing pensions throughout the body.

4. The smile is good for the heart

When you smile, your blood flow increases, improving vessel function, or what is protected against heart attacks and other cardiovascular problems.

5. A smile can reduce anxiety and fear.

The same process that releases endorphins while you smile also lowers cortisol hormone. He is primarily responsible for negative feelings such as anxiety, stress and fear. In addition, those who live in a constant good mood can look at risk situations from another perspective, seeing each problem in the most realistic and least threatening way.

6. Sharing a smile builds trust.

A lot of research proves that by smiling you automatically generate more empathy and trust in the people around you. It is much easier to identify with someone who comes from the open chest and smile on the face, receive, no matter if it is a stranger or someone very close.

7. A smile draws more people near you

According to surveys, people are more attractive when they smile. Do this experiment: go out one day without showing your teeth to anyone, and the next smile to everyone you meet. Your smile is very likely to infect and generate unusual experiences.

8. Smiling Inspires Positive Behaviors

Our actions bring results to life all the time. The way we look at each of the situations that appear to us is fundamental to determining the consequences of our actions. When we accomplish our tasks by smiling, we inspire better feelings and behaviors in ourselves and others.

Hope this helps :) -Mark Brainiest Please :)