According to a study published in the November 6, 2024, online issue of Neurology, the medical journal of the American Academy of Neurology, older people who are sleepy during the day or lose interest in activities due to sleep issues may be more likely to develop a syndrome that can lead to dementia.

People with the syndrome walk slowly and report memory problems, but they do not have a mobility handicap or dementia. Motoric cognitive risk syndrome is a condition that can develop before dementia.

What The Study Found?

The study found that people with excessive daytime sleepiness and a lack of enthusiasm to get things done were more likely to develop the syndrome than people without those sleep-related issues. The study does not prove that these sleep-related issues cause the syndrome, it only shows an association.

“Our findings emphasize the need for screening for sleep issues,” said study author Victoire Leroy, MD, PhD, of Albert Einstein College of Medicine in the Bronx, New York. “There’s potential that people could get help with their sleep issues and prevent cognitive decline later in life.”

How Was It Conducted?

The study included 445 participants, with an average age of 76, who did not have dementia. Participants completed sleep surveys at the beginning of the trial. They were queried about memory problems, and their walking pace was measured on a treadmill at the beginning of the study and then once a year for the next three years.

The sleep assessment included questions about how frequently people had difficulties sleeping because they woke up in the middle of the night, couldn't fall asleep within 30 minutes, or felt too hot or cold, as well as whether they used sleep aids. The question to assess excessive daytime drowsiness asks how frequently people have had problems remaining awake when driving, eating meals, or were engaged in any other activity.

The Findings

In total, 177 participants fit the category of bad sleepers, whereas 268 satisfied the definition of good sleepers.

At the outset of the trial, 42 participants had motoric cognitive risk syndrome. Throughout the trial, 36 more persons got the condition.

35.5% of patients who experienced extreme daytime sleepiness and a lack of enthusiasm developed the syndrome, compared to 6.7% who did not. After accounting for other factors that could influence the risk of the syndrome, such as age, depression, and other health conditions, researchers discovered that people with excessive daytime sleepiness and a lack of enthusiasm were more than three times more likely to develop the syndrome than those who did not have those sleep-related issues.

“More research needs to be done to look at the relationship between sleep issues and cognitive decline and the role played by motoric cognitive risk syndrome,” Leroy said. “We also need studies to explain the mechanisms that link these sleep disturbances to motoric cognitive risk syndrome and cognitive decline.”

A limitation of the study is that participants reported their own sleep information, so they may not have remembered everything accurately.

The study was supported by the National Institute on Aging.

While research shows women need more sleep than men due to brain function, hormones, and multitasking, females around the globe are struggling to get enough sleep, according to experts.

A 2016 study by the Sleep Research Centre at the UK’s Loughborough University found that women needed 20 minutes more sleep because of multitasking and performing more complex brain tasks during the day.

But, the American Academy of Sleep Medicine (AASM), revealed that an estimated 30 percent of women fail to get sufficient sleep.

Hormones, mood disorders, and caregiving responsibilities, coupled with professional pressures and stress, are the major reasons driving up insomnia and other sleep issues among women.

“Women around the world face a higher burden of sleep difficulties because their sleep cycles are tightly interlinked with hormonal shifts that occur throughout life,” Dr. Janhvi Siroya Shah, Sleep Specialist from the University of Bern, Switzerland, told HealthandMe.

Gender Gap In Sleep: Why Women Sleep Less

The gender gap in sleep is real, as revealed by the recent ResMed Global Sleep Survey 2026, which showed that 56 percent of women get a good night's sleep only four days or fewer per week, compared to 50 percent of men.

Women were also 48 percent more likely to report problems falling asleep than men (42 percent). More than 50 percent of women felt waking up not feeling rested for 1-2 nights per week or more, compared to 46 percent of men.

The study flagged stress or anxiety as the biggest barrier to consistent, quality sleep (39 per cent), followed by work-related responsibilities (37 per cent) and household duties (31 per cent) among women.

Speaking to HealthandMe, Dr. Kirti Kadian, from the Department of Pulmonary Critical Care & Sleep Medicine at AIIMS Bhopal, said: “Women experience disproportionate sleep challenges globally, largely because their bodies undergo repeated physiological transitions that influence how sleep is regulated.”

The experts cited the main reasons as

• fluctuations during menstruation,
• pregnancy,
• postpartum recovery
• menopause.

All these factors can alter mood regulation, increase nighttime alertness, and disrupt the architecture of sleep itself.

Dr Kadian said that hormonal fluctuations across the life course -- especially during the menopausal transition -- can affect circadian rhythm, airway stability, pain sensitivity, and the nervous system’s response to stress.

“When these biological changes coincide with external stressors, such as multitasking, emotional labor or caregiving demands, women become far more vulnerable to insomnia and unrefreshing sleep,” Shah said.

The prevalence of sleep disorders increases from about 16–42 percent in pre-menopause to around 39–47 percent in peri-menopause and up to 35–69 percent in post-menopause, indicating that sleep disturbances become more common as women progress through different reproductive stages.

“Declining levels of estrogen and progesterone can disrupt the body’s sleep regulation and trigger symptoms like hot flashes and night sweats, while reduced melatonin may make it harder to fall and stay asleep,” Dr. Kadian explained.

In addition, certain medical conditions that are more common in women, such as thyroid disorders, anemia, and autoimmune diseases, can also negatively affect sleep and overall health.

How Poor Sleep Affects Women

Poor sleep also significantly affects both physical and mental health, increasing the risk of

• metabolic disorders,
• cardiovascular disease,
• weakened immunity,
• persistent fatigue,
• reduced concentration,
• irritability,
• anxiety,
• depression.

How Women can Improve their Sleep

The Harvard Medical School suggested that to get a better sleep cycle women should:

• Create a sleep sanctuary by removing the television, computer, smartphone or tablet, from the bedroom.
• Cut down or limit afternoon naps to 20 to 30 minutes
• Avoid caffeine after noon
• Get regular exercise, but not within three hours of bedtime.

Every year on March 20, World Oral Health Day is observed to raise awareness about the importance of caring for your mouth at every stage of life. This means starting from birth through later years. However, a visit to dentist is usually the last thing anyone plans when they think of a doctor's visit. Dental visits happen only when extraction or something bigger is involved. More often than not people ignore a follow up or a regular dental checkup to maintain oral health. Why so?

In a previous interview with Health and Me Lt Gen Dr Vimal Arora, the Chief Clinical officer at Clove Dental, who has 40 years of experience as a dentist and also served in the Indian Army explained how oral health is not just about a pretty smile. He explained that many do not plan a regular visit to a dentist because the problems that pertains to oral health do not seem "life threatening".

Read: Exclusive: Astronaut Rakesh Sharma Had To Get His Wisdom Tooth Extracted Before His Trip To Space

However, Dr Arora told Health and Me that oral health can in fact be the first way to know if anyone is prone to a chronic disease.

Early Signs Of Disease Your Mouth Can Reveal

“There is now scientific evidence, published in top medical journals, that shows how oral infections can significantly worsen pre-existing systemic diseases,” says Dr. Arora. This isn’t just a theory — it’s a medically established fact.

Take diabetes, for instance. People with gum infections often find it harder to control their blood sugar levels. “If you're suffering from diabetes and you have a gum infection, your diabetes will not be well controlled. In fact, it may worsen,” he adds. The same applies to heart diseases. Oral infections can increase inflammation in the body, potentially triggering or worsening cardiovascular problems.

This is concerning especially for those people who may already be managing conditions like hypertensions, arthritis, or respiratory illness. Poor oral health can actually sabotage their efforts to stay stable.

“Your tongue is a true mirror of your oral and general health,” says Dr. Arora. The correlation therefore goes beyond just gums and teeth. Dentists are trained to detect early signs of systemic disorders simply by examining the tongue's color, coating and texture.

A pale tongue might indicate iron deficiency, while a coated tongue could be a sign of digestive issues or a viral illness. “Sometimes, we ask patients if they've had their blood work done, based purely on what we see on their tongue,” he adds. In some cases, dentists can even detect undiagnosed diabetes or early signs of nutritional deficiencies.

What Mother's Oral Health Can Predict About Their Babies

Dr. Arora also highlights the overlooked risks that pregnant women face when they neglect their dental hygiene. “If you are pregnant and suffer from periodontitis or even gingivitis — essentially poor gum health — you are at risk of having a preterm or low-birth-weight baby,” he says.

This isn’t just theory; it’s a well-documented risk in obstetric dentistry. Pregnant women are encouraged to get dental check-ups not just for themselves, but for the health of their unborn child.

Despite these evidences, oral health remains one of the most neglected aspects of personal healthcare. Dr. Arora believes this is partly due to a lack of awareness and the perception that dental problems are not "serious enough."

“People often wait until they’re in pain before they see a dentist, but by then, the damage might already be affecting other parts of the body,” he says. Preventive check-ups, regular cleaning, and treating gum infections early on can go a long way in improving not just oral health, but overall wellness.

Most people reach for sunscreen when heading to the beach or stepping out for a long day in the sun. But skincare experts say sun protection should not be limited to vacations or outdoor activities. Sunscreen is meant to be part of a daily skincare routine.

This often raises a common question. If you are staying indoors all day, do you still need sunscreen?

Dermatologists say the answer depends on your surroundings and daily habits.

Sunlight can still reach you indoors

Many people assume that staying inside completely protects their skin from sunlight. But this is not always true.

Dr Khushboo Jha, MBBS, MD, Chief Dermatologist Consultant at Metro Hospital and Founder of One Skin Clinic, explains that sunlight entering through windows can still affect the skin.

“While standard window glass blocks most UVB rays, which cause sunburn, UVA rays can still pass through. These rays penetrate deeper into the skin and are linked to long term concerns such as premature aging, uneven pigmentation and loss of skin elasticity,” she says.

These UVA rays are often overlooked because they do not cause immediate redness or burning like UVB rays. However, over time they can lead to visible signs of skin aging and pigmentation.

When sunscreen indoors becomes important

Dermatologists say sunscreen indoors is particularly useful for people who spend long hours near windows or in well lit spaces.

Dr Jha notes that individuals who work near windows, sit in sunlit rooms or spend time driving during the day may still be exposed to sunlight. “Even short periods of daily exposure to sunlight over time can contribute to cumulative skin damage,” she explains.

In such situations, applying sunscreen in the morning can offer an added layer of protection. A broad spectrum sunscreen with at least SPF 30 is generally recommended.

This approach is especially relevant for people working in offices with large windows or those who frequently commute during daylight hours.

What if you are away from windows?

Experts also say sunscreen use indoors is not always equally necessary for everyone.

If you spend most of the day inside a room with minimal natural light and away from windows, your exposure to ultraviolet radiation becomes much lower.

Dr Jha says that in such cases the urgency of frequent sunscreen reapplication becomes less important. The risk of sun related skin damage is significantly reduced when there is little to no direct daylight entering the space.

This means sunscreen indoors should not be treated as a strict rule but rather as a flexible part of skincare based on lifestyle and environment.

What about blue light from screens?

Another topic that often comes up is blue light exposure from digital devices such as phones, laptops and tablets.

Some studies suggest that prolonged exposure to visible light may contribute to pigmentation, especially in individuals with deeper skin tones. However, dermatologists point out that the amount of blue light from electronic screens is much lower than what we receive from natural sunlight.

Dr Jha says the effect of digital screens on the skin is still being studied, but compared to sun exposure, the impact remains minimal.

A practical approach to daily skincare

Dermatologists suggest viewing sunscreen as a preventive skincare habit rather than a rigid rule.

Dr Jha recommends incorporating sunscreen into your morning routine, particularly if your day includes stepping outdoors or spending time in naturally lit environments.

In simple terms, if daylight reaches your workspace or you plan to go outside later in the day, applying sunscreen in the morning is a small step that can help protect your skin over time.