Premature babies, also known as preemies, are infants born before 37 weeks of pregnancy are completed. A typical pregnancy lasts about 40 weeks, and being born early can lead to various health challenges. These babies may have underdeveloped organs, which can affect their breathing, feeding, and overall growth. The degree of prematurity can vary; some babies are born very early, at less than 28 weeks, while others may be born closer to term. Neonatal care is crucial for these infants, as they often require specialized medical attention to help them thrive and reach important developmental milestones.