New Study Finds Obstructive Sleep Apnea May Prevent Memory Formation


If you suffer from obstructive sleep apnea, also called OPA, and you feel like your memory isn’t what it used to be, there may be a correlation between the two, according to a new study.

Did you know that obstructive sleep apnea affects an estimated 18 million adults in the US? New research suggests that there’s a connection between how your brain stores autobiographical memories and OSA.

OSA may impair your mind’s ability to form memories about things you experience in everyday life. Due to the nature of this medical condition, sufferers usually have impacted sleep patterns. This is because OSA sometimes causes them to awake or to regain partial consciousness while they are sleeping, depriving the brain of REM (rapid eye movement) and proper rest.

The result of OSA is that it combines with lack of sleep and reduced REM periods as well as oxygen deprivation, resulting in not only memory problems, as this new study suggests, but also other issues like depression, mood disorders and even cardiovascular issues.

While newer research on OSA is focused on depression, a known cause of sleep apnea, with prior studies finding that sufferers with OSA are more likely to experience depression, it also find that memories may also be affected, too.

The new study, which was led by Melinda Jackson, a senior research fellow at the Royal Melbourne Institute of Technology (RMIT) University in Melbourne, Australia, examines how OSA and autobiographical memory are linked and if the two are connected. The preliminary findings all point to yes.

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An Overview of Autobiographical Memory

Autobiographical memory is the method that the brain uses to store information. This can be everything from daily interactions to vacations (good memories), bad memories, puzzles, to-do lists and more. Scientists have already linked impairment of autobiographical memory to depression, but now it’s also looking like there’s a link between it and OSA as well.

“We know that overly general autobiographical memories — where people don’t remember many specific details of life events — are associated with the development of persistent depression,” Dr. Jackson explained. “Sleep apnea is also a significant risk factor for depression, so if we can better understand the neurobiological mechanisms at work, we have a chance to improve the mental health of millions of people.”

How the Study Reached Its Conclusion

For the study, Dr. Jackson oversaw 44 adults who had been diagnosed with and were suffering from OSA but were not seeking a form of treatment. She then created a group of 44 adults that did not suffer from OSA to create a control group. The study specifically focused on autobiographical memory, ranging from recent events all the way back to childhood events.

The study found that those who suffer from OSA had more vague memories, also called “overgeneral” memories, which are remembered by the brain but devoid of the specifics, like the color shirt you wore on the beach during a vacation five years ago, or a childhood friend’s name from elementary school.

The study found that about 52% of those suffering from OSA had primarily overgeneral memories, as compared to just 19% of those in the control group that did.

The study also compared semantic and episodic memory, both important in the brain’s ability to recall detailed facts and broad events, commonly characterized as “episodes” for the sake of science. The study also concluded that the semantic memory of OSA suffers was impacted by their condition, concluding that OSA has a definitive correlation between past memories and new memories the brain creates and how it stores the information for recollection at a later time.

“Our study suggests sleep apnea may impair the brain’s capacity to either encode or consolidate certain types of life memories, which makes it hard for people to recall details from the past,” Dr. Jackson said. “Brain scans of people with sleep apnea show they have a significant loss of grey matter from regions that overlap with the autobiographical memory network.

As a senior research fellow at RMIT’s School of Biomedical and Health Sciences, Jackson has expressed that she wants to add more to the study in the future.

“We need to look at whether there’s a shared neurobiological mechanism at work — that is, does the dysfunction of that network lead to both depression and memory problems in people with sleep apnea?”

Obstructive Sleep Apnea is a highly treatable condition. Part of effective treatment means having the right tools on-hand before you go to bed. CPAP masks, tubes, cushions and filters can be expensive and it’s easy to forget to order more before you run out.

That’s why we started Monthly CPAP Club! Get all the name brand CPAP supplies you need, delivered to your door, at a low and set monthly price. Set it and forget it and leave the rest to us.


Take control of your sleep apnea with Monthly CPAP Club. Put your CPAP supplies on auto-pilot for a low and set monthly fee. We’ll delivery everything you need every 3 months so you can set it and forget it. Plans start at just $25/month. Get started to day. Get the name brand supplies you need at the lowest prices with free shipping.


Answers to customer's frequently asked questions

Monthly CPAP Club is a new approach to delivering a regular and scheduled shipment of all your CPAP supplies for one low monthly cost.

We charge you a small monthly free and deliver a fresh CPAP mask, tubes, filters and cushions to your door every 3 months.

We work with the major manufacturers to provide a selection of the most popular CPAP masks, cushions, tubing, filters and other accessories.

You get one shipment with all the CPAP supplies you’ll need for the next three months and you just pay one low, monthly payment.

Monthly CPAP Club lets you know when it’s time to change your filters, clean your mask and tubing. Three months after your first order, we’ll let you know (via email) that it’s time to replace your CPAP supplies, and we will ship out a package with a replacement mask, tubing, and filters for your CPAP machine, all including in your monthly fee.

Every package allows you to choose your preferred style of CPAP mask and the brand, make and model you prefer. You have the choice of standard tubing or heated tubing. You have the option for extended tubing options with heated tubing. Every package also includes cushions for the mask and filters for your machine

We need to know which CPAP breathing machine you use so we can send you the correct filters. Filters are specific to machines. 

If you don’t see your CPAP breathing machine model listed, please contact us at  Please include the make and model of CPAP breathing machine you use. 

We do support many machines. The most popular machines are listed right now and more will be added as we grow.

In the mean time, let us know which machines you use so we get you the correct filters.

Monthly CPAP Club currently offers Resmed, Respironics, and Fisher & Paykel CPAP products. We can accommodate certain other brands when requested by email. Please let us know by emailing us at or submit a request online.

Our goal at Monthly CPAP Club is to offer all the necessary CPAP supplies for good sleep hygiene in simple, scheduled quarterly shipments.

We want the program to be even easier for the end user to afford with a monthly payment.

When you sign up for a package with Monthly CPAP Club, you will be charged the monthly package amount ranging from $30 and up, depending on your preferences.

We will ship out a package within 1 business day of your order with all the CPAP supplies you’ll need to properly treat your sleep apnea with clean and effective supplies.

The next scheduled shipment for your account will commence 3 months after your initial first shipment. We’ll send you an email your next delivery is on the way.

The best part about Monthly CPAP Club for those living with sleep apnea is that CPAP supplies are one less thing you’ll have to regularly order, schedule or pick up. We ship you the supplies you’ll need for the next three months and ship you another package in three months will all new and fresh CPAP supplies.

We do sell most of the popular and newest CPAP machines. Although we do not list many of the machines on our Monthly CPAP Club site, we can process orders for machines via email for existing subscribers and over the phone for new users.

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Getting started is easy. Just click the button below. Choose your supplies, customize your plan and we’ll send your CPAP supplies straight to you! So take a load off and leave the rest to us!