24-Hour Crisis Hotline: (877)SAFEGBC or (877)723-3422 Mental Health & Substance Abuse Issues

6502 Nursery Drive, Suite 100
Victoria, TX 77904
(361)575-0611
Fax: (361)578-5500
Regular Hours: M-Fri 8am - 5pm
Every 3rd Thurs of the Month - Extended Hours Until 7 pm

Medical Disorders
Resources
Basic InformationLookupsLatest News
Long-Haul COVID in Kids Typically Ends Within 3 Months: StudyPfizer, Moderna Vaccines Still Offer Good Protection Against Severe COVID: StudyTrial Into Antioxidant for Parkinson's Disease Yields Disappointing ResultsIs Flu Ready for a Comeback? Get Your ShotCommon Eye Conditions Tied to Higher Risk for DementiaDrug Might Stop Heart Trouble Linked to Sickle Cell AnemiaChild Obesity Rose Sharply During PandemicFDA Advisory Panel to Meet on COVID Booster ShotsStatin Cholesterol Drugs May Help Fight Ulcerative ColitisAHA News: Physical Activity Is Helpful After a Stroke, But How Much Is Healthy?Special 'Strategies' Can Help People With Parkinson's Walk, But Many Patients UnawareEven When Undergoing Treatment, People With MS Gain From COVID VaccinesNIH Spending Nearly $470 Million on Long-Haul COVID StudyHospitalizing the Unvaccinated Has Cost U.S. Nearly $6 BillionIn 16 States, 35% or More Residents Now Obese: CDCPet Store Puppies Passing Drug-Resistant Bacteria to PeopleIs a Combo COVID/Flu Shot on the Way?1 in 500 Americans Has Died From COVID-19Having Even a Cousin or Grandparent With Colon Cancer Raises Your Risk: StudyBlood Cancer Patients Could Benefit From COVID Booster Shot: StudyWHO Says Africa Will Get 30% of COVID Vaccines It Needs by FebruaryCOVID Vaccines for Kids Under 12 Could Come This Fall: FauciEbola Vaccine Effective in African Clinical TrialBritain OK's COVID Vaccine for Kids 12 and Older; Hopes to Avoid LockdownsIsraeli Data on COVID Boosters to Be Published This Week in Major JournalData Doesn't Support Need for COVID-19 Vaccine Boosters: ExpertsCOVAX Cuts Global COVID Vaccine Supply Estimates By a QuarterMonth-Long Recovery From Concussion Is Normal: StudyDeath From COVID 11 Times More Likely If You're Unvaccinated: StudyL.A. Is First Major School District to Mandate Vaccines for Students 12 and UpNew Tally Adds Extra 16,000 U.S. Nursing Home Residents Lost to COVIDBlack Americans, Mexican Americans Develop Diabetes Earlier in LifeAverage COVID Hospitalization Is 150 Times More Expensive Than VaccinationGetting Your First COVID Shot Can Boost Mental Health: StudyVaccinated Have 1 in 13,000 Chance of Breakthrough Case Needing HospitalizationBiden Issues Tough New Vaccine Mandates Affecting Millions of U.S. WorkersTime Is Brain: Mobile Stroke Units Reduce Disability, Study FindsWildfires Cause More Than 33,000 Deaths Globally Each YearIs Your Workplace an Asthma Trigger?Biden to Strengthen Push for Vaccine Mandates in New COVID PlanAHA News: How a Simple Tape Measure May Help Predict Diabetes in Black AdultsEczema Can Take Toll on Child's Mental HealthNo Lasting Damage to Lungs After COVID in Young Patients: StudyAdults With Autism, Mental Illness May Be at Higher Risk for Severe COVIDIn Cancer Patients, COVID Vaccine Immunity at 6 Months Is Similar to General PopulationNew Insights Into Why Asthma Worsens at NightHere's How COVID-19 Can Affect Your MouthPet Dogs Can Alert Owners to Epileptic SeizuresU.S. COVID-19 Cases Now Top 40 MillionWhy Aren't COVID Vaccines Getting to People Globally?
Questions and AnswersLinks
Related Topics

Diabetes

New Insights Into Why Asthma Worsens at Night

HealthDay News
by Robert Preidt
Updated: Sep 8th 2021

new article illustration

WEDNESDAY, Sept. 8, 2021 (HealthDay News) -- Many people with asthma know their illness can flare up at night, and new research suggests the body's internal clock could be to blame.

The findings could prove important for treating and studying asthma, the researchers said.

"This is one of the first studies to carefully isolate the influence of the circadian system from the other factors that are behavioral and environmental, including sleep," said study co-corresponding author Frank Scheer, director of the Medical Chronobiology Program at Brigham and Women's Hospital, in Boston.

Up to 75% of people with asthma report having worse symptoms at night, and factors such as exercise, air temperature, posture and sleep environment are known to affect asthma severity.

But the role of the body's internal clock (circadian system) has been unclear.

"Our findings point to a phenomenon of 'silent' asthma,'" Scheer said in a hospital news release. "A person's airway resistance may be worse at night, due to the combined effects of the circadian system and of the behavioral sleep/wake cycle, but they are generally unaware of this unless it is so severe that it wakes them up."

The new study included 17 people with asthma. They were not taking steroid medication, but did use bronchodilator inhalers when they had worsening asthma symptoms.

Their lung function, asthma symptoms and inhaler use were continuously assessed in two separate protocols. In one, the patients were awake continuously for 38 hours. In the other, they were placed on a recurring 28-hour sleep/wake cycle for a week.

Both protocols found participants had their lowest lung function during the circadian night (around 4 a.m.) and a worsening of asthma that normally may go unnoticed during sleep.

The patients used their inhalers four times more often during the circadian night than during the day, the findings showed.

"We observed that those people who have the worst asthma in general are the ones who suffer from the greatest circadian-induced drops in pulmonary function at night, and also had the greatest changes induced by behaviors, including sleep," said co-corresponding author Steven Shea, director of the Oregon Institute of Occupational Health Sciences, in Portland.

The findings were published Sept. 6 in the Proceedings of the National Academy of Sciences.

More information

The American Lung Association has more on asthma.

SOURCE: Brigham and Women's Hospital, news release, Sept. 6, 2021