Providing your employees with comprehensive group health insurance keeps them happier and healthier in the long run. Since your employees have access to good medical care you gain the benefit of minimizing the recovery period when they are sick and employees that have insurance can afford to go to the doctor instead of coming into work sick; possibly infecting other employees.
In addition to offering affordable access to quality health services; group health coverage also contributes to increased employee retention while providing tax incentives and benefits to you as an employer. There are many excellent potential employees just waiting to work for your business, but they will not apply if you don't offer them what they need to live a comfortable life.