Sleep Archive

Articles

Does poor sleep diminish the cognitive benefits of exercise?

In a 2023 study, among people age 50 or 60 who reported high rates of exercise, those who said they slept less than six hours per night had faster rates of cognitive decline over the next 10 years than those who said they got six to eight hours of sleep per night.

How much sleep do you actually need?

Just how many hours of sleep are enough for you? The answer varies and it might be better to track sleep quality than focus on the number of hours you log each night.

Sleep paralysis: Causes, symptoms, and treatments

Sleep paralysis  interferes with restful sleep and impacts emotional health for many people. While there is still much to learn about the condition, understanding the  causes of sleep paralysis  can help with treatment and prevention.

The far-reaching effects of a little bit of weight loss

Losing 5% of one's total body weight can result in clinically significant physiologic changes. For example, losing a little weight can reduce heartburn, knee pain, blood pressure, and diabetes risk. Losing 5% of one's body weight may also lead to better sexual function, more restorative sleep, extra energy, and more self-esteem. To reach a 5% reduction in total body weight, it helps to exercise; eat a healthy diet rich in lean proteins, whole grains, fruits, vegetables, legumes, nuts, and seeds; and get enough sleep.

Hidden causes of weight gain

The reason for weight gain isn't always as obvious as inactivity or a poor diet. Weight gain can stem from many other causes. For example, it might reflect age-related physiological changes such as muscle loss, poor sleep, or changes in sex hormone levels; underlying conditions such as diabetes or sleep apnea; side effects from taking certain medications, such as antidepressants or beta blockers; or possibly the effects of eating late at night or the makeup of gut bacteria. Recent or excessive weight gain warrants a visit to a doctor to help pinpoint the issue.

Is your daily nap doing more harm than good?

Naps can be healthy for adults who need to catch up on sleep or work odd hours, but they can also make it more difficult to sleep at night and be a sign of a sleep disorder. Naps should be short and limited to the early afternoon to prevent them from interfering with nighttime sleep. People who have the urge to nap daily should consider whether they need to improve their nighttime sleep habits.

Eating junk food may affect deep sleep

A new study found that eating an unhealthy diet high in processed food can affect people's deep sleep, the stage when the pituitary gland in the brain releases hormones to build and repair muscles and bones as well help boost cognitive function and memory.

How to help your child get the sleep they need

Without enough quality sleep, children are more likely to have health and behavioral problems — and difficulty learning. Here are a few simple things you can do to help your child get the sleep they need.

Top 7 reasons you have a headache

Headaches can have many triggers from allergies to stress, or even hunger. Understanding headache triggers can help you avoid one in the future. Here's a look at the most common triggers for each kind of headache.

Surprising causes of neck pain

Neck pain is often the result of strained neck muscles that become irritated from everyday activities. Examples include watching TV for hours at a time, sleeping without enough neck support, slouching, looking down at a smartphone for long periods, lifting heavy dumbbells, or getting stressed out. Ways to avoid such neck pain include using pillows to better support the neck on a couch or in bed, sitting up straighter, keeping electronic screens at eye level, lifting weights that aren't too heavy, and practicing stress management.

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Sign Up
Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE gift.

The Best Diets for Cognitive Fitness, is yours absolutely FREE when you sign up to receive Health Alerts from Harvard Medical School

Sign up to get tips for living a healthy lifestyle, with ways to fight inflammation and improve cognitive health, plus the latest advances in preventative medicine, diet and exercise, pain relief, blood pressure and cholesterol management, and more.

Harvard Health Publishing Logo

Health Alerts from Harvard Medical School

Get helpful tips and guidance for everything from fighting inflammation to finding the best diets for weight loss...from exercises to build a stronger core to advice on treating cataracts. PLUS, the latest news on medical advances and breakthroughs from Harvard Medical School experts.

BONUS! Sign up now and
get a FREE copy of the
Best Diets for Cognitive Fitness

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.