Smiling can be a conscious, intentional choice whether your smile is genuine or not, it can act on your body and mind in a variety of positive ways, offering a number of benefits for your health, your mood, and even the moods of people around you. Here are some of the reasons why you need to smile more; 

Helps You Live Longer

Studies have found that genuine, intense smiling is associated with longer life.  Overall, happy people seem to enjoy better health and longevity. Maintaining a happy, positive mood may be an important part of living a healthy lifestyle.

Elevates Mood

The physical act of smiling activates pathways in your brain that influence your emotional state meaning you can "trick" your mind into entering a state of happiness.  A smile can trigger the release of neuropeptides that improve your neural communication, as well as neurotransmitters like dopamine and serotonin, which can boost your mood.

Is Contagious

Smiling can also change the moods of others for the better.  Your brain automatically notices and interprets other people's facial expressions and sometimes, you may even mimic them. That means that you might spot someone else's smile and unconsciously smile yourself. It is scientifically proven that smiles are contagious.

Smiling Helps You Stay Positive

Smiling can influence your feelings of positivity, it sends the message "Life is good!" to your brain and, ultimately, the rest of your body.

Relieves Stress

Stress can permeate our entire being, and it can really show up in our faces. Smiling not only helps to prevent us from looking tired, worn down, and overwhelmed but it can actually help decrease stress.

Lowers Blood Pressure

Laughter seems to lower blood pressure, after causing an initial increase in heart rate and breathing. 

Reduces Pain

Smiling releases endorphins, other natural painkillers, and  serotonin. Together, these brain chemicals make us feel good from head to toe. Smiling is a natural drug.

Makes You Attractive

We are naturally drawn to people who smile.   Smiling is seen as more attractive, and people may even assume you have more positive personality traits if you're smiling. It can also make you look more youthful. The muscles we use to smile also lift the face, making a person appear younger.

Boosts the Immune System

It is thought that when you smile, immune function improves because you are more relaxed.  Whether you're trying to maintain your overall health or strengthen your immune system smiling may help.

Success

Research has shown that people who smile regularly appear more confident, are more likely to be promoted, and are more likely to be approached.