👉 Fissicostates are conditions that occur when a person's heart rate is unusually low during sleep, often in the early morning hours. This condition can be caused by a variety of factors such as stress or anxiety, hormonal changes, and even certain medications. During sleep, the body produces hormones known as adenosine, which suppresses the heart rate. However, if the adenosine levels are too low, the body may not be able to effectively regulate the heart rate. This can
