I'm with R41 -- 40 was the beginning of being middle-aged.. But my 50's have shown me it really is the beginning of the end. I had an sports injury @ 50 that made it difficult for me to exercise, and I put on 20 lbs. The knee surgery I had to try to correct it only left things worse.
According to the National Institute of Neurological Disorders and Stroke (NINDS), the sudden, involuntary jerking of a muscle or group of muscles while drifting off to sleep is called myoclonus. It is caused by sudden muscle contractions, also known as positive myoclonus, or muscle relaxation, which is referred to as negative myoclonus.
What causes falling sensation while sleeping is the natural disengagement of the astral body (psychosoma) from the physical one, as a result of the relaxation achieved and the expansion of your energies. When we are awake, our energies keep us connected to the physical body, and as a result our bodies stay âalignedâ.