So here some fact's:
1.It is improving vision.
Reason:The reason is because that the banana's contains a certain amount vitamin A.Fat-soluble vitamin which is a big deal for the protection of the eyes and for the good vision.

2.It protects you from constipation.

The banana's are good source of soluble fiber.Including banana's in the regular diet can help you avoid constipation and other bowel conditions.

These here they have as well some fibers:

3.Helps with depression.

Banana's are useful for reducing stress levels because they contain body converts in serotonin (the so-called "Happy Hormone"), which in turn help you relax and improve your mood.

Tryptophan:

4.Helps to lose weight.

Choosing food during a diet can definitely get involved. They are sweet and can satisfy you'r appetite when you eat pastry. In addition this fruit, is rich in complex carbohydrates, which degrade slowly in the body, and this stops the rise in blood sugar. Your body produces smaller amounts of insulin and you lose weight faster.

Insulin:

5.And the last reason why shall we eat more banana's everyday is because it reduce the risk of stroke scientists at the Albert Einstein Medical Collage in New York have found that sticking to a menu including banana's and other potassium-rich products reduces the risk of stroke.

Albert Einstein Medical Collage in New York: