|Basic InformationLatest News|Health Tip: Create a Food-and-Activity JournalHow to Dodge Summertime ThreatsHealth Tip: Basic Beach SafetyHealth Tip: Are You Well Enough to Travel?Health Tip: Want Healthier Lungs?Tips to Curb Nighttime EatingExtreme Heat in Southwest a Deadly ThreatMany Americans May Be Taking Too Much Vitamin DHow to Beat Jet Lag This Summer VacationAmericans Want to Be Fit, But Most Don't Put in the EffortWith Climate Change, More Deadly Heatwaves Will StrikeAre U.S. Teens Now as Inactive as 60-Year-Olds?Summer Fun Is Not Without HazardsHappy Marriage, Healthier SpousesHave Scientists Created a Safe, Sun-Free Tan?Could You Spot Bed Bugs in a Hotel Room?Health Tip: Help Prevent Skin CancerHealth Tip: Prepare for a Safe Road TripCould Your Breakfast Cloud Your Judgment?Stay Safe as Summer Temps SoarWith Summer Sun Comes Heightened Skin Cancer RiskSLEEP: Weekend Sleep Changes Adversely Affect Health OutcomesCould U.S. Election Results Be Harmful to Health?Do You Have 'Social Jet Lag?'Health Tip: Stay Safe During SummerFire Up the Grill Safely This Holiday WeekendWarming Climate, More Sleepless Nights?You're Less Apt to Fact-Check 'Fake News' When It's on Social Media: StudyDoes Dirty Air Keep You Awake?Cut Calories, Lengthen Life Span?How Not to Nod Off Behind the WheelWomen Aren't Better at Reading People's Faces After AllAre You Addicted to Your Smartphone?Just 2 Weeks on the Couch Can Trigger Body's DeclineSunscreen 101Fido or Fluffy Can Bring You a Big Health BoostHealth Tip: Sleep is Important for MemoryJust 5 Percent of Daily Salt Gets Added at the TableMany Seniors Use Cellphones While Driving With ChildrenLongevity in the U.S.: Location, Location, LocationGluten-Free Diet Not Healthy for Patients Without Celiac DiseaseEating Gluten-Free Without a Medical Reason?Life Expectancy Goes Up for Black AmericansHealthy Heart in Middle Age Delivers Big DividendsCooking at Home Means Eating Better, Spending LessMost Seniors Use Cellphones While Behind the WheelTaking the Stairs a Better Pick-Me-Up Than CoffeeHealth Tip: How to Get Enough Vitamin DHealth Tip: Better Sleep, a Better LifeThe Top 5 Conditions That Shorten Americans' Lives -- And Are PreventableVideosLinksBook Reviews
Guys, a Good Night's Sleep Might Save Your Life
by -- Robert Preidt
Updated: Apr 3rd 2017
MONDAY, April 3, 2017 (HealthDay News) -- Adequate sleep isn't a luxury; it's essential. And for men, it might even mean the difference between life and death, a preliminary study suggests.
Researchers found that men younger than 65 who slept just three to five hours a night were 55 percent more likely to develop fatal prostate cancer than those who got the recommended seven hours of shuteye nightly.
And, six hours of sleep a night was linked to a 29 percent higher risk of prostate cancer death compared to seven hours.
"If confirmed in other studies, these findings would contribute to evidence suggesting the importance of obtaining adequate sleep for better health," said lead study author Susan Gapstur, vice president of epidemiology at the American Cancer Society.
However, more research is needed to better understand the biologic mechanisms, said Gapstur. For now, she considers the study "intriguing" but not substantive enough to cause sleep-deprived males any alarm.
Still, the findings contribute to evidence that the body's natural sleep/wake cycle -- circadian rhythms -- might play a role in prostate cancer development, Gapstur said.
The study results stem from an analysis of long-term data on more than 823,000 men in the United States. The findings were scheduled for presentation Monday at the annual meeting of the American Association for Cancer Research, in Washington, D.C.
Lack of sleep can inhibit production of melatonin, a hormone that affects sleep cycles. Low melatonin production can lead to an increase in genetic mutations, greater oxidative damage, reduced DNA repair and a weakened immune system, Gapstur said in an association news release.
Lack of sleep may also contribute to the disruption of genes involved in tumor suppression, she added.
It's not clear why the link between limited sleep and higher death risk from prostate cancer wasn't seen in men 65 and older. But, Gapstur suggested that the natural decline in nocturnal melatonin levels with age might possibly reduce the relative impact of lack of sleep.
The National Sleep Foundation recommends adults get at least seven hours of sleep a night.
Research presented at meetings should be considered preliminary until published in a peer-reviewed medical journal.
The U.S. National Cancer Institute has more on prostate cancer.
This article: Copyright © 2017 HealthDay. All rights reserved.