ALLERGY, RESPIRATORY
Traffic, Dust Linked to Asthma in Kids
'Safe' Ozone Levels May Not Be for Some
Keep Asthma, Allergies at Bay for the Holidays
ALTERNATIVE MEDICINE
Cranberries May Help Prevent Urinary Tract Infections
Eight Spiritual Universal Principles in the Art of Practice
Ginger Can Ease Nausea From Chemotherapy Treatments
ANIMAL CARE
Beware of Dog Bites
Separation Anxiety, Canine-Style
Animals Respond to Acupuncture's Healing Touch
BONES & JOINTS
Vitamin C Protects Some Elderly Men From Bone Loss
Too Few Screened for Abdominal Aneurysm, Study Says
Childhood Dairy Intake Boosts Bone Health Later On
CANCER
Many Ignore Symptoms of Bladder Trouble
Many Cancer Survivors Don't Adopt Healthy Lifestyle
Massage Therapy Helps Those With Advanced Cancer
CAREGIVING
UV Lights, Fans May Curb TB Spread in Hospitals
Falls Are Top Cause of Injury, Death Among Elderly
MRSA Infections Spreading to Kids in Community
CIRCULATORY SYSTEM
Potassium-Rich Foods May Cut Stroke, Heart Disease Risk
Review Confirms Links Between Diet, Heart Health
High Blood Fat Levels Common in Americans
COSMETIC
Health Tip: After Liposuction
Science May Banish Bad Hair Days
Study Evaluates Laser Therapies for Hair Removal
DENTAL, ORAL
Gum Care Helps Control Type 2 Diabetes and Its Complications
Obesity Boosts Gum Disease Risk
Gum Disease Treatment Doesn't Cut Preterm Birth Risk
DIABETES
Poor Blood Sugar Control After Heart Surgery Impacts Outcomes
Red-Grape Compound May Improve Diabetes
Fructose-Sweetened Drinks Up Metabolic Syndrome Risk
DIET, NUTRITION
Coffee Beans May Be Newest Stress-Buster
B Vitamins Might Lower Stroke Risk
Vitamin B12 Key to Aging Brain
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Old-Growth Forests Dying Off in U.S. West
FDA Faulted for Stance on Chemical in Plastics
Stomach Germ May Protect Against Asthma
EYE CARE, VISION
When Gauging Age, the Eyes Have It
Diabetic Hispanics Missing Out on Eye Exams
Poor Night Vision May Predict Age-Related Eye Disease
FITNESS
Walk Long, Slow and Often to Help the Heart
Good Warm-Ups Could Halve Sports Injuries
Tai Chi: An Ideal Exercise for Many People with Diabetes
GASTROINTESTINAL PROBLEMS
Soothing Imagery May Help Rid Some Kids of Stomach Pain
New Guidelines Issued for Management of IBS
Traditional Nonsurgical GERD Treatments Not Impressive
GENERAL HEALTH
Pesticides and How to Affordably Eat Organic or Reduce Pesticide Consumption
U.S. Prepares for Possible Return of Swine Flu in Fall
More Single Women Are Having Babies
HEAD & NECK
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
Combating Myths About Seasonal Allergies
'Comfort Dogs' Come to Emotional Rescue
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
B-Vitamins Help Protect Against Stroke, Heart Disease
Too-Low Blood Pressure Can Also Bring Danger
Quitting Smoking Doubles Survival in Early Stage Lung Cancer
INFECTIOUS DISEASE
Dry Weather Boosts Odds of Flu Outbreaks
Older Adults May Have Some Immunity to Swine Flu
Swine Flu Is Now a Pandemic Says W.H.O.
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Health Tip: Back Pain in Children
Better Sleep, Grades Seem to Go Up
6 Million U.S. Kids Lack Enough Vitamin D
MEN'S HEALTH
Soy Linked to Low Sperm Count
More Vitamin C May Mean Less Chance of Gout
The Dark Side of Vegetarianism
MENTAL HEALTH
Man's Best Friend Helps Mend Broken Hearts
Reminiscing Helps Build Emotional Strength
Music Soothes Anxiety as Well as Massage Does
PAIN
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
Are We Exercising Pain Away? Not So Much.
PHYSICAL THERAPY
PREGNANCY
Prenatal Stress May Boost Baby's Asthma Risk
Placebo Acupuncture Tied to Higher IVF Pregnancies
Alternative Treatments May Boost IVF Success
SENIORS
Eating Well And Keeping Active As You Grow Old Will Help You Stay Sharp
Any Old Cane Won't Do
Seniors Cope With Sleep Loss Better Than Young Adults
SEXUAL HEALTH
SLEEP DISORDERS
Better Sleep, Grades Seem to Go Up
Moderate Aerobics May Ease Insomnia Symptoms
Exercising Throat Muscles May Relieve Sleep Apnea
WOMEN'S HEALTH
Broccoli May Help Battle Breast Cancer
Omega-3 May Reduce Endometriosis Risk
Most Women With Osteoporosis Unaware of Raised Fracture Risk
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Better Sleep, Grades Seem to Go Up

(HealthDay News) -- Better quality sleep and more efficient sleep just might lead to higher grades, especially in math.

That's the finding of a study that included 56 teens, ages 14 to 18, who had complained of insufficient sleep at night or daytime sleepiness. Researchers measured the sleep of the participants, and the teens provided information on their grades.

The study found an association between higher math scores and fewer awakenings at night, less time spent in bed, higher sleep efficiency, greater sleep quality and less time taken to fall into a deep sleep at night. Higher scores in English were associated with fewer nighttime awakenings. And there also was a link found between increased time taken to fall into a deep sleep during the weekends and worse overall academic performance.

The researchers said they were surprised to find that although more and better sleep produced overall academic improvements, different aspects of sleep were associated with different types of functioning.

"Sleep deficits cause problems for adolescents, but students differ in their personal resources and in how chaotic their sleep-wake schedules are," principal investigator Jennifer C. Cousins, a postdoctoral fellow at the University of Pittsburgh Medical Center, said in a news release from the American Academy of Sleep Medicine.

"The more regular and predictable their sleep is, the better they are likely to do when confronted with short-term sleep deficits," she said. "Therefore, participants with better sleep overall may be affected differently in a sleep condition compared to those who have a more varying sleep/wake schedule."

The study was to be presented June 10 in Seattle at the annual meeting of the Associated Professional Sleep Societies.

SOURCES: American Academy of Sleep Medicine, news release, June 10, 2009 Published on: June 10, 2009