is already lighter than it once was.
Changes in circadian rhythm, or the body’s internal clock, also play an important role. Many people begin to feel sleepy earlier in the evening as they age. If bedtime shifts to 8:30 or 9:00 p.m., the body may naturally complete its sleep cycle around 3:00 or 4:00 a.m. This pattern is not always insomnia — sometimes continue reading …
