Is humour necessary?

Is humour necesarry? Humour is commonly present in our everyday life. It appears on television, radio, literature...etc. So there's no way that's just a simple coincidence. We all like humour and it has several benefits.

First of all, scientists have proved that we change psychologically when we laugh. We stretch muscles througout our face and body, our pulse and blood presure go up, and we breath faster, sending more oxygen to our tissues. In other words, laughter has the same benefits as a workout.

Secondly, scientists have justified too that laughter burns calories. They discovered that we burn aproximately more than 50 calories in 10-15 minutes.

What's more humor is good for difficult times where we have to deal with stressful situations. It promotes positive mood and helps to override negative emotions. It also helps to see the funny side in adverse situations.

In conclusion, I think It's pretty obvios why humour is necessary, it only has benefits and it makes us feel good as good as workout and it helps to relax in tough moments.