Top-bar hives are especially useful in areas where resources are limited, but are also increasingly popular among hobby beekeepers in industrialized nations. A top-bar hive has bars from which the honey bees attach and hang wax comb. Unlike the full four-sided frames used in a Langstroth hive, the comb on bars cannot be centrifuged to extract honey and then reused. This lead to a lower production of honey, but may believe that the top-Bar hive is a more natural environment for the bees. The less stress there is on a hive the healthier it is and that makes them easier to manager.