Sleep and Aging Older adults need about the same amount of sleep as all adults—7 to 9 hours each night. But, older people tend to go to sleep earlier and get up earlier than they did when they were younger. There are many reasons why older people may not get enough sleep at night.
According to the National Sleep Foundation, an afternoon nap of around 20-30 minutes is best for boosting alertness and mental performance, without interfering with nighttime sleep. The new study, however, suggests that an afternoon nap of around 1 hour is ideal for improving cognitive functioning among older adults.
Daytime napping among older people is a normal part of aging – but it may also foreshadow Alzheimer's disease and other dementias. And once dementia or its usual precursor, mild cognitive impairment, are diagnosed, the frequency and/or duration of napping accelerates rapidly, according to a new study.
Insomnia in the Elderly
In elderly individuals, sleep‐maintenance insomnia and early awakening are more common complaints than sleep‐onset insomnia; this is likely due to the age‐related changes in sleep architecture and circadian rhythm described above.
As you age your body produces lower levels of growth hormone, so you'll likely experience a decrease in slow wave or deep sleep (an especially refreshing part of the sleep cycle). When this happens you produce less melatonin, meaning you'll often experience more fragmented sleep and wake up more often during the night.
It can be a normal response to physical activity, emotional stress, boredom, or lack of sleep, but it can also signal a more serious mental or physical condition.
Studies have shown that melatonin level declines with age, which may increase conditions related to circadian rhythm, such as sleep disorders. Melatonin is often prescribed to treat insomnia in older patients.
A lack of sufficient sleep may cause or increase confusion, memory loss, or depression and diminish overall mental capacity. In addition to mental issues, sleep deprivation also has physical effects.
Older people wake up more often because they spend less time deep sleep. Other causes include needing to get up and urinate (nocturia), anxiety, and discomfort or pain from long-term (chronic) illnesses. Sleep difficulty is an annoying problem.
Studies suggest that low doses of melatonin (0.5-6 mg) improve initial sleep quality in older adults with insomnia.
Excessive daytime sleepiness in older adults may be a symptom of health issues like sleep apnea, cognitive impairment, or cardiovascular issues. Sleep Apnea: Obstructive sleep apnea can cause pauses in breathing during sleep.
While a 30- to 90-minute nap in older adults appears to have brain benefits, anything longer than an hour and a half may create problems with cognition, the ability to think and form memories, according to the study published in the Journal of the American Geriatrics Society.
According to their internal body clock, most older adults need to go to sleep around 7 p.m. or 8 p.m. and wake up at 3 a.m. or 4 a.m. Many people fight their natural inclination to sleep and choose to go to bed several hours later instead.
Older adults need about the same amount of sleep as all adults—7 to 9 hours each night. But, older people tend to go to sleep earlier and get up earlier than they did when they were younger. There are many reasons why older people may not get enough sleep at night.
Is a Two-Hour Nap Too Long? A 2-hour nap may make you feel groggy after you wake up and you might have trouble falling asleep at night. Aim for napping up to 90 minutes, 120-minutes if necessary. Napping every day for 2 hours could be a sign of sleep deprivation and should be discussed with a doctor.
There are plenty of potential culprits. Medications for blood pressure, sleep problems, pain and gastrointestinal reflux can induce fatigue, as can infections, conditions such as arthritis, an underactive thyroid, poor nutrition and alcohol use. All can be addressed, doctors say.
According to the research, the average American starts feeling old at the age of 47. Similarly, the average respondent starts to really worry about age-related bodily changes around 50 years old.
Unpasteurized milk and dairy products, fried foods, high-sodium foods, and certain raw produce are among the foods to avoid or limit at any age. If a limited income makes it difficult for an older adult to afford healthy foods, there are several food assistance programs available to help.
Reasons this might happen include drinking caffeine or alcohol late in the day, a poor sleep environment, a sleep disorder, or another health condition. When you can't get back to sleep quickly, you won't get enough quality sleep to keep you refreshed and healthy.
Sleep deficiency is linked to many chronic health problems, including heart disease, kidney disease, high blood pressure, diabetes, stroke, obesity, and depression. Sleep deficiency is also linked to a higher chance of injury in adults, teens, and children.
Research is ongoing, but so far, a history of sleep trouble does seem to increase the risk of dementia for some people. One study suggests sleep deprivation could increase your dementia risk by 20%. In middle age, even getting less than 6 hours of sleep per night may increase your dementia risk in the future.
One study of older adults with insomnia found that magnesium supplementation at a dose of 500 milligrams daily for eight weeks helped them fall asleep faster, stay asleep longer, reduced nighttime awakenings, and increased their levels of naturally circulating melatonin.
In the elderly, should prescription medication be necessary, the first-line treatment is nonbenzodiazepines (e.g., zolpidem, eszopiclone, zaleplon, and ramelteon) as they have been found to be safer and better tolerated than tricyclic antidepressants, antihistamines, and benzodiazepines.
Melatonin: Melatonin is considered one of the safest over-the-counter sleep aids, with few side effects. A prescription drug called ramelteon is designed to mimic the effects of melatonin. Like melatonin, it is not considered habit-forming and it does not affect balance.