Sleep Archive

Sleep-maintenance insomnia common complaint among women at midlife

You wake up and look at the clock: it's 3 a.m. You tell yourself you've got to get back to sleep, but thoughts about yesterday's troubles, the coming day's challenges, and all those "must-do's" race through your mind. You toss and turn and worry about not getting enough sleep. Maybe you doze off for an hour or so, but when the alarm clock gets you up for the day, you're far from rested.

Insomnia — inability to get the sleep you need to wake up refreshed — is the most common sleep complaint in the United States. It often takes the form of sleep-maintenance insomnia — that is, difficulty staying asleep, and in particular, waking too early and struggling to get back to sleep. Like difficulty falling asleep at the beginning of the night, called sleep-onset insomnia, sleep-maintenance insomnia is more common in women than in men.

Ask the doctors

Q. I've heard a lot recently about inflammation being a health risk, but I'm not sure I really understand what it is. Can you explain?

A. When people talk about inflammation, they're actually talking about your immune system's response to a perceived injury or infection. When you're injured, this inflammation is actually a good thing. The area you injured will become red and swell as an army of beneficial white blood cells flow in to fight infection and help you heal. The same response occurs in other parts of your body when you encounter a virus or infection. But sometimes this immune response occurs when it shouldn't. It can be triggered, for example, when you are exposed to toxins, and by other causes such as chronic stress, obesity, and autoimmune disorders. In these cases, instead of moving in, healing the problem, and then returning to normal, the inflammation persists over time. It's thought that this chronic state of inflammation can lead to numerous health problems, including heart disease, arthritis, depression, Alzheimer's disease, and even cancer.

Researchers examining dietary data from over 50,000 postmenopausal women found that women who ate foods with a higher glycemic index, and foods with more added sugars, were more likely to have insomnia.

In the journals

Over-the-counter pain medicines that contain caffeine can be effective at stopping some headaches. But drinking a large amount of caffeinated beverages might actually trigger a headache for some people with migraines, according to a study published in the August 2019 issue of The American Journal of Medicine.

Researchers recruited almost 100 people with migraines who suffered from fewer than 15 headaches per month. For six weeks, they recorded the timing and characteristics of each migraine and their intake of caffeinated beverages.

There are many things about hospital routines that make it difficult for patients to sleep well. If you find yourself hospitalized, there are things you can do to improve the chances that you will get a better night’s sleep.

Many people now wear smartwatches and other wrist-based devices, and use them to collect and track information about their sleep. But the algorithms that govern how the devices work are opaque, and there is no data comparing them to devices that sleep researchers use.

A sleep shortfall can be hard on your heart. Make sure you're getting enough quality snooze time.

Maybe you stay up past midnight watching TV or checking your smartphone while lounging in bed. Or perhaps you snuggle under the covers and close your eyes at a decent hour, but then toss and turn, unable to fall asleep. Whatever the reason, the results are familiar to many people — feeling unrefreshed and maybe even a bit cranky when you wake up the next morning. According to the CDC, about one in three adults doesn't get enough sleep.

"Some people have trouble falling asleep. But others choose to stay awake and end up chronically sleep deprived," says Dr. Sogol Javaheri, a sleep specialist at Harvard-affiliated Brigham and Women's Hospital. When you don't sleep enough, feeling tired and bleary-eyed is only part of the problem. People who consistently get less than six hours of sleep nightly face a higher risk of heart disease as well as other, often co-occurring conditions such as diabetes and obesity. The exact mechanisms aren't fully understood, but disruptions in blood pressure and blood sugar regulation likely play a role. Insufficient sleep also appears to raise stress hormone levels and inflammation, which also strain the heart.

Over the past decade, research has revealed that the majority of patients treated for cancer experience difficulties with memory, attention, concentration, and thinking. There are several lifestyle actions that can help improve these symptoms, as well as certain medications.

Using a CPAP machine is beneficial for people with obstructive sleep apnea, but if the machine isn’t kept clean it could lead to an illness. There are sanitizing systems available, but cleaning the parts by hand is just as effective.