Cucumbers are helpful in helping to keep cool in the heat and have many nutritional values. They contain vitamin A& C, phosphorus and iron. The dark green rind is considered a fruit and comes from the same family of zucchini, pumpkin and other squashes. Studies have show that they are a natural diuretic known for secreting and promoting the flow of urine. Cucumbers can aid with kidney and urinary bladder disease as well as liver and pancreatic disease. Individuals with conditions such as high and low blood pressure have been know to benefit from cucumbers because of there potassium content. 
They also are fairly easy to grow in Las Vegas, making them a great garden project.