Can daytime sleepiness predict Alzheimer's?

On September 9, 2018, Posted by , In Buzz, By ,,, , With No Comments

In a recently published study, scientists conclude that excessive daytime sleepiness could predict the onset of Alzheimer’s in later life. Daytime sleepiness may be a new risk factor for Alzheimer’s disease. Alzheimer’s disease is the most common form of dementia. It affects around 5.7 million people in the United States…

How daytime sleepiness may raise Alzheimer's risk

On March 13, 2018, Posted by , In Buzz, By ,,,, , With No Comments

Alzheimer’s — a progressive, neurodegenerative condition — is characterized by memory loss and cognitive impairments. Early warning signs include confusion regarding habitual tasks and severe changes to behavior. But are there any less intuitive signals to watch out for? Older people who feel excessively sleepy during the daytime may be…

How do we override sleepiness? Brain region identified

On June 9, 2017, Posted by , In Buzz, By ,,,, , With No Comments

A new study investigates the brain region responsible for wakefulness. A paper published this week in the journal Neuron peers into a region of the brain involved in the state of wakefulness. The findings could help to design treatments for conditions such as insomnia and depression-related sleep disturbances. Most of…

What causes sleepiness when sickness strikes

On January 23, 2017, Posted by , In Buzz, By ,,, , With No Comments

It’s well known that humans and other animals are fatigued and sleepy when sick, but it’s a microscopic roundworm that’s providing an explanation of how that occurs, according to a study from researchers at the Perelman School of Medicine at the University of Pennsylvania. A study published in eLife…

Poor self-regulation in teens associated with circadian rhythms and daytime sleepiness

On November 4, 2016, Posted by , In Buzz, By ,,,,,,, , With No Comments

Chronic insufficient sleep is at epidemic levels in U.S. teens and has been associated with depression, substance use, accidents, and academic failure. Poor self-regulation or an inability to alter thinking, emotions, and behaviors to meet varying social demands is thought to be a key link between inadequate sleep in…

No blue light, please, I'm tired – light color determines sleepiness versus arousal in mice

On August 16, 2016, Posted by , In Buzz, By ,,,,,,,,,, , With No Comments

Light affects sleep. A study in mice published in Open Access journal PLOS Biology shows that the actual color of light matters; blue light keeps mice awake longer while green light puts them to sleep easily. An accompanying Primer provides accessible context information and discusses open questions and potential…

Sleepiness and fatigue linked to brain atrophy in cognitively normal elderly

On June 17, 2016, Posted by , In Buzz, By ,,,,,,, , With No Comments

A new study found that normal older adults who experience excessive sleepiness during the day or significant fatigue may have more brain atrophy than expected for their age, particularly in areas of the brain that are more susceptible to aging and Alzheimer’s disease. Results show that subjects…

Fatty diets lead to daytime sleepiness, poor sleep

On April 21, 2016, Posted by , In Buzz, By ,,,,,, , With No Comments

University of Adelaide researchers have found that men who consume diets high in fat are more likely to feel sleepy during the day, to report sleep problems at night, and are also more likely to suffer from sleep apnea. This is the result of the Men Androgen Inflammation…

Daytime sleepiness could predict metabolic disease

On March 24, 2016, Posted by , In Buzz, By ,,,,, , With No Comments

If you take long naps or feel particularly sleepy during the day, you could be on the way to developing high blood pressure, high cholesterol, excess fat around the waist and high blood sugar, all of which increase the risk of heart disease. These symptoms are collectively known as metabolic…

Nicotine helps suppress alcohol-induced sleepiness, study finds

On October 28, 2015, Posted by , In Buzz, By ,,,,,, , With No Comments

Use of nicotine and alcohol often go hand-in-hand, although the underlying causes are unclear. One suggestion is that nicotine boosts the pleasurable effects of alcohol while reducing the aversive effects. Now, a new study finds another explanation – nicotine cancels out the sleepiness brought on by…