Beta agonists are a class of medications that stimulate beta-adrenergic receptors in the body. These receptors are found in various tissues, including the lungs and heart. By activating these receptors, beta agonists help relax and open the airways, making them useful in treating conditions like asthma and chronic obstructive pulmonary disease (COPD). There are two main types of beta agonists: short-acting and long-acting. Short-acting beta agonists provide quick relief from asthma symptoms, while long-acting beta agonists are used for ongoing control of symptoms. Both types can improve breathing and enhance overall lung function.