Wednesday, January 16, 2019
facebook


Less than six hours of night sleep may up heart disease risk: Study
Photo for representation only.

Less than six hours of night sleep may up heart disease risk: Study

15 Jan 2019 | 3:44 PM

WASHINGTON: People who sleep less than six hours a night may be at an increased risk of cardiovascular diseases compared to those who sleep for seven to eight hours, according to a study.

[ + read story ]

WASHINGTON

People who sleep less than six hours a night may be at an increased risk of cardiovascular diseases compared to those who sleep for seven to eight hours, according to a study.

 The study, published in the Journal of the American College of Cardiology, found that poor quality sleep increases the risk of atherosclerosis—plaque buildup in the arteries throughout the body.

"Cardiovascular disease is a major global problem, and we are preventing and treating it using several approaches, including pharmaceuticals, physical activity and diet," said Jose M Ordovas from the Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) in Spain.

"But this study emphasises we have to include sleep as one of the weapons we use to fight heart disease—a factor we are compromising every day," said Ordovas, who is also associated with Tufts University in the US.

This is the first study to show that objectively measured sleep is independently associated with atherosclerosis throughout the body, not just in the heart, researchers said.

Previous studies have shown that lack of sleep raises the risk of cardiovascular disease by increasing heart disease risk factors such as glucose levels, blood pressure, inflammation and obesity, they said.

The new study included 3,974 bank employees in Spain and used imaging techniques to detect the prevalence and rate of progression of subclinical vascular lesions in a population with an average age of 46 years.

All participants were without known heart disease and two-thirds were men. All participants wore an actigraph, a small device that continuously measures activity or movement, for seven days to measure their sleep.

They were divided into four groups: those who slept less than six hours, those who slept six to seven hours, those who slept seven to eight hours and those who slept more than eight hours.

 The participants underwent 3D heart ultrasound and cardiac CT scans to look for heart disease.

The study found that when traditional risk factors for heart disease were considered, participants who slept less than six hours were 27 per cent more likely to have atherosclerosis throughout the body compared with those who slept seven to eight hours.

 Similarly, those who had a poor quality of sleep were 34 per cent more likely to have atherosclerosis compared with those who had a good quality of sleep.

Quality of sleep was defined by how often a person woke during the night, and the frequency of movements during the sleep which reflect the sleep phases.

"It is important to realise that shorter sleep duration that is of good quality can overcome the detrimental effects of the shorter length," Fuster said.

The study also suggested sleeping more than eight hours a night may be associated with an increase in atherosclerosis.

While the number of participants who slept more than eight hours was small, the study found women who slept more than eight hours a night had an increased risk of atherosclerosis.

Alcohol and caffeine consumption were higher in participants with short and disrupted sleep, the study found.

"Many people think alcohol is a good inducer of sleep, but there's a rebound effect," Ordovas said.

"If you drink alcohol, you may wake up after a short period of sleep and have a hard time getting back to sleep. And if you do get back to sleep, it's often a poor-quality sleep," Ordovas said.

While some studies show drinking coffee can have positive effects on the heart, Ordovas said it can depend on how quickly a person metabolises the coffee.

"Depending on your genetics, if you metabolise coffee faster, it won't affect your sleep, but if you metabolise it slowly, caffeine can affect your sleep and increase the odds of cardiovascular disease," he said. — PTI

'Contraceptives may soon be administered via pain-free patch'

'Contraceptives may soon be administered via pain-free patch'

15 Jan 2019 | 12:51 PM

WASHINGTON: Scientists have designed a novel long-acting contraceptive that can be self-administered by women using a painless microneedle skin patch.

Even small amount of cannabis can alter brain: Study

Even small amount of cannabis can alter brain: Study

15 Jan 2019 | 11:59 AM

WASHINGTON: Using even a small amount of cannabis may cause changes in the brain volume of teenagers, according to a study.

Sedentary lifestyle cancels out heart benefits of having normal weight

Sedentary lifestyle cancels out heart benefits of having normal weight

14 Jan 2019 | 6:24 PM

WASHINGTON: Low levels of physical activity can put healthy weight adults at the same risk for cardiovascular diseases as those who are overweight, a study has found.

Vitamin D pills may help prevent deadly lung attacks

14 Jan 2019 | 2:35 PM

LONDON: Vitamin D supplements can reduce the risk of potentially fatal lung attacks in chronic obstructive pulmonary disease (COPD) patients, a study has found.

Women less sensitive to pain than men: Study

Women less sensitive to pain than men: Study

13 Jan 2019 | 4:31 PM

TORONTO: Women tend to forget pain that they suffered more quickly than men, confirmed a new study in mice and humans, challenging the widely held belief that the fairer sex are more sensitive to pain than men.

New sleeping pill can help patients wake up in response to threat

New sleeping pill can help patients wake up in response to threat

13 Jan 2019 | 1:11 PM

TOKYO: Japanese scientists have shown that a new class of sleeping pill that preserves the ability to wake in response to a threat, unlike the commonly prescribed drugs that muffles a sleeping brain's "intruder alert".

Bullying, sexual abuse may trigger binge eating, smoking

Bullying, sexual abuse may trigger binge eating, smoking

12 Jan 2019 | 3:27 PM

SYDNEY: People who have suffered bullying or sexual abuse have a lower quality of life similar to those living with chronic conditions like heart disease, diabetes, depression or severe anxiety, a new study has found.

Child abuse ups suicide risk in later life

Child abuse ups suicide risk in later life

12 Jan 2019 | 2:33 PM

LONDON: Children who experience physical, sexual, and emotional abuse are significantly more likely to attempt suicide in later life, a study has found.

Common physical health drugs may help treat mental illness

Common physical health drugs may help treat mental illness

12 Jan 2019 | 2:29 PM

LONDON: Medications commonly used to combat physical health diseases, such as high blood pressure, could bring significant benefits to people with serious mental illnesses such as schizophrenia and bipolar disorder, a study claims.

Higher calcium levels may predict heart disease

Higher calcium levels may predict heart disease

12 Jan 2019 | 12:56 PM

NEW YORK:Specks of calcium in the heart's artery walls could signal early risk of cardiovascular disease, particularly in men from South Asian countries, including India, and may help develop treatment methods, researchers say.

Vitamin D supplements can help lung patients

Vitamin D supplements can help lung patients

11 Jan 2019 | 2:48 PM

LONDON:Vitamin D supplements can reduce the risk of potentially fatal lung attacks in some patients with chronic obstructive pulmonary disease (COPD), suggests a new study.

New single dose experimental Ebola drug effective

New single dose experimental Ebola drug effective

11 Jan 2019 | 1:06 PM

NEW YORK: Scientists have developed an experimental new drug that can in a single dose successfully protect non-human primates against the deadly Ebola virus.

Decreased deep sleep may signal Alzheimer's disease: Study

Decreased deep sleep may signal Alzheimer's disease: Study

10 Jan 2019 | 3:50 PM

WASHINGTON: Older people who get less deep sleep have higher levels of the brain protein tau, a sign of cognitive decline and Alzheimer's disease, according to a study.

2 drinks daily may up irregular heartbeat risk

2 drinks daily may up irregular heartbeat risk

10 Jan 2019 | 5:14 PM

SYDNEY: Even moderate alcohol consumption, described as intake of two drinks daily or 14 per week, could increase the risk of irregular heart rhythm condition, warn researchers.

Biodegradable sensor can monitor blood flow in arteries

Biodegradable sensor can monitor blood flow in arteries

09 Jan 2019 | 2:53 PM

BOSTON: Stanford scientists have developed a biodegradable, battery-free sensor that can monitor the flow of blood through an artery, helping doctors assess the success of blood vessel surgery.

Bottle-fed babies more likely to be left handed, study claims

Bottle-fed babies more likely to be left handed, study claims

08 Jan 2019 | 5:09 PM

WASHINGTON: Infants who are bottle-fed are more likely to be left handed than those who are breastfed, scientists claim.

Short bursts of intense activity may be more beneficial

Short bursts of intense activity may be more beneficial

08 Jan 2019 | 1:16 PM

WASHINGTON: Shorter bouts of intense exercise may produce more health benefits than hours of moderate-level physical activity, according to a study.

Exercise hormone can delay Alzheimer's

Exercise hormone can delay Alzheimer's

08 Jan 2019 | 1:09 PM

BRASILIA: Physical exercise can help counter the loss of memory caused by Alzheimer's as well as delay the onset of the most common type of dementia, according to a study.

Novel device to make blood testing pain-free for diabetics

Novel device to make blood testing pain-free for diabetics

06 Jan 2019 | 3:28 PM

LONDON: A novel microneedle patch to reliably monitor blood-sugar levels may soon offer diabetics a pain-free alternative to pricking their fingers several times a day to take a blood test, scientists say.

An egg a day may keep diabetes away

An egg a day may keep diabetes away

04 Jan 2019 | 2:29 PM

LONDON: Eating an egg daily can have a beneficial effect on the blood metabolite profile that is related to a lower risk of Type-2 diabetes, a new study shows.

Kindness can help heart patients recover from emotional trauma

Kindness can help heart patients recover from emotional trauma

04 Jan 2019 | 1:54 PM

LONDON: Heart attack patients can suffer substantial emotional trauma after treatment, and showing kindness may help them find their way back to emotional wellbeing, a study has found.

Spinach-protein may offer treatment for alcohol abuse, mood disorders

Spinach-protein may offer treatment for alcohol abuse, mood disorders

04 Jan 2019 | 2:34 PM

NEW YORK: A large protein found in spinach may aid in the development of new medications for millions around the world dealing with alcohol use disorders, chronic pain and mood disorders, researchers said.

Consistent radiation dose must to avoid risks

Consistent radiation dose must to avoid risks

03 Jan 2019 | 2:53 PM

LOS ANGELES: Large differences in radiation doses used for CT scans are mainly due to how the scanners are used by medical staff rather than differences in the patients scanned or machines used, a study has found.

  • SpectrumAn endearing rebel

    An endearing rebel

    The man who wrote these immortal lines, however, remains the same even today — an unstoppable lyrical force. As the world celebrates renowned poet-lyricist Kaifi Azmi’s birth centenary on January 14th, he and his poetry need no particular date to be celebrated. Every word he wrote is a celebration of life, of visionary zeal, a radical philosophy that defies time and its limited constraints.

  • ‘Social justice and fair play were in his DNA’

    I often read accounts of public personalities who are large hearted in public but are difficult in their private lives.

  • Theatre at your doorstep

    An increasing number of experimentations, permutations and combinations are on, in the space of contemporary arts- theatre isn’t untouched by it.

    more Spectrum...
    Time to be well intergratedTop 5 Integrated Courses

    Time to be well intergrated

    16 Jan 2019 | 9:21 AM
    Radiographer’s roleCareer Hotline

    Radiographer’s role

    16 Jan 2019 | 9:21 AM
    Five surefire tips for  winning scholarshipsCool Counsel

    Five surefire tips for winning scholarships

    16 Jan 2019 | 9:21 AM
    more Jobs & Careers...