For new parents, making sure their baby is safe and comfortable is always on top of their minds. One concern is body temperature specifically, when can their baby manage it on their own? Understanding how and when is important.
Why Can’t Newborns Regulate Temperature?
Babies have an immature thermoregulatory system. This means it is hard for them to maintain a stable internal temperature. They rely on external factors like clothing, blankets, and room temperature to stay warm.
Newborns also have a large surface area compared to their weight. This causes them to lose heat quickly, especially through their head. During deep sleep, their metabolism slows, making it even harder for them to warm up if their blanket comes off.
When Does This Improve?
Babies start to regulate their own body temperature around six months. By then, their nervous system is more developed, and their body can handle fluctuations in temperature. However, every baby is different, so it is important to monitor for fussiness, cold hands, or sweating.
By nine to 12 months, babies typically have a fully functioning thermoregulation system. Now they can adjust to external temperatures much like adults.
Until then, parents should continue to layer clothing appropriately, keep the sleep environment safe and warm, and monitor their baby’s temperature using reliable tools. Tools like the Exergen’s Temporal Artery Thermometer make it easy; it’s non-invasive, accurate, and works with a swipe across the forehead by gently touching it.
Sources,
Exergen P/N 850505