Is half an hour enough

Many people have the habit of taking naps. Indeed, taking a short nap in the afternoon every day can eliminate sleepiness, and the effect is much better than sleeping for two more hours at night. So, how good is a nap?
How long to take a nap? The nap time should not be too long, preferably about 10-30 minutes. Research believes that human sleep is divided into two stages: light sleep and deep sleep, which are periodic cycles. a
After falling asleep for more than 30 minutes male chastity cages , ordinary people go from light sleep to sleep. At this time cock cages , the inhibitory process of the central nerves of the brain deepens, many capillaries in the brain tissue temporarily close, blood flowing through the brain tissue is relatively reduced, and the metabolic process in the body gradually decreases. If you wake up at this time, you will feel uncomfortable and more sleepy. This is because the suppressed cerebral cortex has not yet been lifted anal vibrator , the closed capillaries have not yet been opened, and the brain has temporary relative insufficient blood supply and temporary autonomic nerve dysfunction. This symptom will disappear in more than 10 minutes if it is short and in more than 30 minutes if it is long. This symptom is the biggest shortcoming of napping. Because taking a nap in bed, most people will inevitably fall into deep sleep, resulting in a long nap time. In this way, you will feel uncomfortable and dizzy after getting up, and you will not be able to concentrate on work or study for a long time, which will affect your work and study efficiency in the afternoon. In addition, naps often take a long time to fall asleep, which actually increases anxiety in the heart.
What's more cheap sex toys , because the nap time at noon is too long, you can't sleep at night, which can seriously lead to insomnia, which will affect the next day's work and study efficiency. Over time, a vicious cycle will form and destroy the normal biological rhythm of the human body.