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The causes of hypnic jerk are yet unclear and under study. None of the several theories that have attempted to explain it have been fully accepted. [ 9 ] One hypothesis posits that the hypnic jerk is a form of reflex , initiated in response to normal bodily events during the lead-up to the first stages of sleep, including a decrease in blood ...
Studies have shown that 5–15% of people who are 20–50 years old, 20–30% of people who are 50–70 years old, and 10–50% of people 70+ years old urinate at least twice a night. [3] Nocturia becomes more common with age. More than 50 percent of men and women over the age of 60 have been measured to have nocturia in many communities.
According to one Centers for Disease Control and Prevention (CDC) study, among 74,571 adult respondents in 12 U.S. states, 35.3% reported <7 hours of sleep during a typical 24-hour period, 48.0% reported snoring, 37.9% reported unintentionally falling asleep during the day at least once in the preceding month, and 4.7% reported nodding off or ...
For many over 65, a night of undisturbed sleep is not an option. The causes are varied, including menopause and sleep apnea. See what might keep you up.
Nocturia is the need of frequent urination at night. [1] The most common cause of this condition for women and children is a urinary tract infection. The most common cause of urinary frequency in older men is an enlarged prostate. [2]
In a study published in 1972, [11] during puberty, the average tumescence time per night was 159 min; average REM sleep time was 137 min. Average simultaneous REM sleep and penile tumescence per night was 102 min. Study subjects averaged 6.85 tumescence episodes/night, and, of these, 5.15 occurred during a REM sleep period. Tumescence episodes ...
Middle-of-the-night insomnia, or "sleep maintenance insomnia", also called terminal insomnia in contrast with "initial insomnia", is characterized by having difficulty returning to sleep after waking up during the night or very early in the morning. Initial or "sleep-onset" insomnia consists of having difficulty falling asleep at the beginning ...
Image credits: bexxyboo #2. I was on the clinical dev team for the phase 3 moderna vaccine. Countless people, almost always men, would explain how the vaccine does/doesn’t work after I’ve ...