The modern day office environment is taking us away from all that is natural. The ac is generally kept so high that all people keep some form of winter-wear. Why then the "so cold acs"? There should be fans. There should a "natural corner" where people can sit in the open and work with fresh air, sunlight and wind. Maybe even flowers. If not a completely open space then at least there should be big windows which should be kept open some of the times. People should be encouraged to have a little fresh air every few hours. Every office offers snacks. Here green teas, fresh fruits and juices should be kept as snacks at least in addition to the regular ones for those in pursuit of a good health.
If we are more alive then only can we more productive.