- Post-traumatic stress dysfunction (PTSD) could happen after an individual experiences a traumatic occasion.
- People with PTSD could expertise flashbacks, nervousness, problem sleeping, and a wide range of different signs.
- Current remedies embody psychotherapy, counseling, and drugs.
- A brand new examine has discovered that simply half-hour of blue mild remedy within the morning could enhance sleep and scale back the severity of PTSD signs.
- The researchers counsel that this easy-to-use remedy may improve the efficacy of different PTSD remedies.
Most folks will expertise a surprising, scary or harmful occasion at a while of their lives. This could result in a spread of reactions, from which many individuals could recuperate from.
But for some folks, a traumatic expertise will depart them with post-traumatic stress dysfunction (PTSD). In reality, round 6% of individuals within the United States will expertise PTSD in some unspecified time in the future of their lives.
PTSD could also be handled with psychotherapy (discuss remedy), counseling, and medicines, resembling antidepressants.
In a brand new examine, researchers from the University of Arizona and Harvard Medical School discovered that publicity to blue mild for simply half-hour every morning could enhance sleep high quality and scale back symptom severity in folks with PTSD.
William D. Killgore, Ph.D., principal investigator on the examine, professor of psychiatry, psychology, and medical imaging, and director of the Social, Cognitive, and Affective Neuroscience (SCAN) Lab within the Department of Psychiatry on the University of Arizona College of Medicine, Tucson, advised Medical News Today:
“We found that morning blue light exposure for half an hour each day was associated with improvement in total sleep time and some aspects of sleep quality in our sample of patients with PTSD. This improvement in sleep was also associated with in an increase in the volume of a brain structure called the amygdala (which is often reduced in size in people with PTSD).”
The examine was just lately printed in Frontiers in Behavioral Neuroscience.
PTSD happens when the standard short-term signs following a traumatic occasion persist for greater than 1 month and begin to impression each day life.
Symptoms of PTSD could embody:
- problem sleeping or disturbed sleep
- dangerous desires and scary ideas
- avoidance of something that may set off recollections of the occasion
- being simply startled
- offended outbursts
- destructive ideas, melancholy, and nervousness.
Additionally, round 70-90% of individuals with PTSD report sleep disturbances, resembling recurring nightmares and insomnia.
Prior studies have proven that sleep disruption adversely impacts PTSD outcomes, so an enchancment in sleep high quality is commonly key to restoration.
At the beginning of the examine, 82 individuals, all of whom had clinically important PTSD, accomplished two full-day neurocognitive assessments plus neuroimaging scans.
The researchers then randomly assigned individuals into one among two teams. Both teams underwent 6 weeks of at-home mild remedy, comprising half-hour of sunshine publicity inside 2 hours of waking and no later than 11 am. One group used a blue mild gadget and the opposite used an amber mild gadget.
The examine was double-blind — neither individuals nor the employees in direct contact with them knew whether or not they have been having blue or amber mild remedy.
“We selected blue because it is the wavelength of light that is most efficient for producing this shift in the biological clock,” Dr. Killgore defined.
“The retina of the eye has specific receptors that respond predominantly to the blue wavelengths of light (which is the primary wavelength of sunlight), and these receptors project to the circadian clock in the brain (a brain structure known as the suprachiasmatic nucleus of the hypothalamus). So, almost any light will work if it is bright enough, but blue tends to work most efficiently,” he added.
At the beginning of the examine, the researchers assessed individuals’ sleep high quality, daytime sleepiness, and frequency and severity of nightmares.
After 6 weeks, all examine individuals reported an enchancment in sleep high quality, much less disrupted sleep, and decrease ranges of insomnia and nightmares. But the blue-light group additionally noticed a discount in signs, one thing that was not seen within the management group.
By distinction, the amber-light group confirmed a return of their unique worry recollections.
“We found that the blue light treatment was effective at helping people to hold onto the benefits of a simple extinction treatment for fear memories. Specifically, the participants were conditioned to fear a particular picture by zapping them with a mildly annoying (but not painful) electric shock. Then we eliminated the fear response with a procedure called “extinction” (i.e., merely exhibiting the image over and over with out shock).”
– Dr. Killgore, Ph.D., principal investigator on the examine
Dr. David A. Merrill, Ph.D., a geriatric psychiatrist and director of the Pacific Neuroscience Institute’s Pacific Brain Health Center at Providence Saint John’s Health Center in Santa Monica, CA, not concerned within the examine, advised MNT:
“Blue light exposure in the morning positively affects the brain to produce better sleep. Getting a good night’s sleep is critical to maximizing and maintaining the benefit seen with therapies for PTSD. Without the sleep, you’re more likely to lose the benefit.”
“It’s well known that morning light exposure, whether through sunlight or a high intensity light box, can help lessen symptoms of depression. Blue light has also been studied in TBI [traumatic brain injury] and shown to help cognitive recovery. This new study extends what we know about the benefits of light therapy to PTSD,” he added.
The authors suggest that morning blue-light remedy may successfully complement different remedies for PTSD.
Despite the constructive implications, nonetheless, it’s necessary to notice the examine was small in scale. More analysis continues to be wanted earlier than blue mild remedy may be thought of an efficient remedy for PTSD.
“We didn’t conceive of the blue light treatment as a stand-alone therapy for PTSD, but as something to be used as an adjunctive treatment to improve sleep/daily rhythmicity [or] mood and facilitate the gains made in other therapies,” Dr. Killgore stated.
“The light treatment could be used to sustain daily sleep and wake rhythms in a more healthy state. There are many available light devices that can be used for this purpose at a relatively modest cost.”
Dr. Merrill agreed and stated the findings have been “fascinating.”
“Morning blue light exposure looks like a promising add-on therapy for those undergoing treatment for PTSD using more conventional approaches like psychotherapy,” Dr. Merrill stated.
“The light therapy is low risk and well tolerated. It may also work as an anti-depressant, which is a 2-for-1 bonus.”