A study published in the journal BMC Complementary and Alternative Medicine explores sensory deprivation in a flotation tank as a form of preventative healthcare. Its results showed substantial reductions in levels of stress, anxiety, depression, and pain, and along with improved sleep quality and overall mood, proving that flotation therapy is an excellent way to prevent and treat many emotional and physical ailments.
Sensory deprivation cuts off all the senses from the mind, removing it from the average barrage of stressful situations that most of us face each day. In the absence of distracting external stimuli, the mind enters a state of deep relaxation and meditation. The research shows how this state can actually be medicinal, as it has tremendous potential to reduce stress and thus the damaging symptoms that come with it.
Chronic stress expresses itself through things like depression, insomnia, and anxiety. Flotation therapy can directly relieve this, but how?
The relaxation response method (RR) is essentially the exact opposite of the fight-or-flight response. It is the physiological process that relieves stress, occurring during states of deep relaxation. RR is able to combat stress so efficiently because of its calming effects on the parasympathetic nervous system, the portion of the nervous system responsible for many physiological changes within the body including energy conservation and deep relaxation. It is through this process that RR lowers heart rate and blood pressure and slows down breathing.
The authors of the study noted that to successfully ignite the RR response while the body is under stress it is crucial to reduce all sensory input and movement by the body — which makes floatation therapy the perfect solution. The research described the mechanisms of this method: “During flotation-REST (Restricted Environmental Stimulation Technique) an individual lay in a horizontal floating posture immersed in highly concentrated salt water (magnesium sulphate) in a flotation tank. All incoming stimuli are reduced to a minimum during this period (usually 45 minutes), i.e. sound and light, and the water is heated to skin temperature. ”
Sixty-five participants — 14 men and 51 women — took part in the study. The participants were divided into a flotation-REST group, which consisted of 37 people, and a wait-list control group, with 28 people. The flotation group received 12 45-minute sessions over the course of seven weeks. Subjects were assessed for depression, anxiety, stress, sleep quality, energy, pain, and optimism before and after the study. These same measurements were assessed for the control group.
The flotation group displayed radically improved scores in comparison to the control group, with participants exhibiting reduced anxiety, depression, pain, and stress.
Here’s Some Data
The average score for stress before flotation treatment was 1.86; afterwards, it dropped to a remarkable 0.95. The control group scored 1.84 before and 1.89 after treatment, meaning their stress actually increased during this period.
The score for anxiety for the flotation group was 7.92 before treatment and 4.28 afterwards. On the other hand, the control group scored 7.03 before and 6.96 afterwards.
For depression, the flotation group started out with a score of 4.42, which then dropped to 2.25 after treatment. The control group started at 4.00 and ended the period at 4.30, another increase.
Researchers also saw an improvement in various lifestyle factors. Sleep quality, pain, optimism, and mindfulness were all measured and shown to increase with treatment. These results further strengthen the case for flotation therapy.
In the conclusion of the study the researchers were confident that flotation therapy can be an excellent practice to improve overall health by greatly reducing stress (and thereby stress related illnesses) while increasing psychological factors in healthy participants as well.With the tiny screen bouncing around in front of us, tinny sound quality and frequent interruptions, watching a movie during a flight is hardly an immersive experience.
Yet, frequent fliers may have found themselves – or at least witnessed others – welling up at the most innocuous of films while on a long airline journey. Even lighthearted comedies such as Bee Movie, Bridesmaids and The Simpsons can trigger the water works in passengers who would normally remain dry-eyed if watching these on the ground.
Physicist and television presenter Brian Cox and musician Ed Sheeran have both admitted they can get a bit over-emotional when watching movies on aircraft. A new survey by Gatwick Airport in London found 15% of men and 6% of women said they were more likely to cry when watching a film on a flight than they would if seeing it at home.
One major airline has gone as far as issuing “emotional health warnings” before inflight entertainment that might upset its customers.
There are many theories about why flying might leave passengers more vulnerable to crying – sadness at leaving loved ones, excitement about the trip ahead, homesickness. But there is also some evidence that flying itself may also be responsible.
An emerging body of research is suggesting that soaring 35,000ft (10km) above the ground inside a sealed metal tube can do strange things to our minds, altering our mood, changing how our senses work and even making us itch more.
“There hasn’t been much research done on this in the past as for healthy people these do not pose much of a problem,” says Jochen Hinkelbein, president of the German Society of Aerospace Medicine and assistant medical director for emergency medicine at the University of Cologne. “But as air travel has become cheaper and more popular, older and less fit people are travelling by air. This is leading to more interest in the field.”
Hinkelbein is one of a handful of researchers who are now examining how the conditions we experience on flights can affect the human body and mind.
There can be no doubt that aircraft cabins are peculiar places for humans to be. They are a weird environment where the air pressure is similar to that atop an 8,000ft-high (2.4km) mountain. The humidity is lower than in some of the world’s driest deserts while the air pumped into the cabin is cooled as low as 10°C (50F) to whisk away the excess heat generated by all the bodies and electronics onboard.
The reduced air pressure on airline flights can reduce the amount of oxygen in passengers’ blood between 6 and 25%, a drop that in hospital would lead many doctors to administer supplementary oxygen. For healthy passengers, this shouldn’t pose many issues, although in the elderly and people with breathing difficulties, the impact can be higher.