Beta-1 is a type of receptor found in the heart and other tissues. It plays a crucial role in regulating heart function by responding to hormones like adrenaline. When activated, Beta-1 receptors increase heart rate and the force of heart contractions, helping the body respond to stress or physical activity. These receptors are part of the adrenergic receptor family, which also includes Beta-2 and Alpha receptors. Medications that target Beta-1 receptors, known as beta-blockers, are commonly used to treat conditions such as high blood pressure and heart disease by reducing heart workload and improving heart rhythm.