Showing posts with label Sleep. Show all posts
Showing posts with label Sleep. Show all posts

Tuesday, December 9, 2014

Music and your health.

"If music be the food of love, play on" 
                                                           
                                 (William Shakespeare)


When we read that we are bound to agree. Music has been an integral part of most civilizations and still is. Mankind has used music in so many ways; to entertain, to express emotions and get feelings across, to heal and recover, to relax and meditate, and to learn or record facts and history to name a few.

Music is like the soundtrack of our lives. How often we hear a song and can right away be transported to another time, another place where we heard it first or where it impacted us. How often has music brightened up our mood or helped us relax. How many times has music brought so many together, that is why it is the universal language. It is clear that we need music in our lives,  “Without music, life would be a mistake.” as Friedrich Nietzsche concluded.


Over the decades, countless studies and continued research work has repeatedly supported the belief that music can be more than just food for the soul, it can have real beneficial effects on our overall health and well-being. Here are some of those benefits:

Physical benefits

Pain:
According to a study published in Frontiers of Psychology, scientists found that listening to music that is relaxing, highly pleasant, familiar, and self-chosen, reduced pain and increase functional mobility in fibromyalgia patients.

Endurance:
British researchers studied 12 healthy male college students riding stationary bikes while listening to six different songs of their choosing, each with a different tempo. It was observed that not only their pedaling speed changed along with the tempo of the music so did their overall affect. As tempo slowed, they slowed the pedaling, their heart rate decreased, breathing slowed and mileage fell. But as music tempo increased so did their pedaling speed, heart rate, distance covered and showed reduced exertion. Hence the conclusion 'healthy individuals performing submaximal exercise not only worked harder with faster music but also chose to do so and enjoyed the music more when it was played at a faster tempo."
In another study, researchers had 20 moderately active adults (22±4 y), unfamiliar with interval exercise, complete an acute session of SIT(Sprint Interval training) under two different conditions: music and no music. Leading to the conclusion ' Music enhanced in-task performance and enjoyment of an acute bout of SIT.'

Post-exercise recovery:
After a workout music not only helps relax, it also helps the body recover faster. A study published in the Journal of Strength & Conditioning Research showed beneficial effect of both music and rhythm was greater toward the end of the recovery period. Results suggest that listening to music during non structured recovery can be used by professional athletes to enhance recovery from intense exercise.


Sleep:
A study showed classical music to improve the quality of sleep in individuals with poor sleep. Relaxing classical music can thus be used to help alleviate insomnia instead of sleep inducing medications.


Eating Habits:
A recent study found that with softening of the music and lighting while eating, diners end up eating less and enjoying the food more, suggesting that a more relaxed environment increases satisfaction and decreases consumption.

Blood Flow:
Previous studies have demonstrated that music may influence physiologic parameters such as heart rate and blood pressure. A study of the effect of music on endothelial function showed an increased blood flow and a happier mood.


Mental Benefits

Stress:
Over the past years, music has been increasingly used as a therapeutic tool in the treatment of different diseases in healthy and ill subjects over recent years (e.g., the so called "Mozart effect"). Music has been found to lead to release of biochemical measurable stress-reducing effects in some individuals. Some kinds of music have also been known to cause changes in cardiac and neurological functions.
It has also been seen that music helps individuals perform better under pressure if listening to music. Such a study involving basketball players known to choke under pressure, showed improved performance by the same players when listening to upbeat music and lyrics.


Meditation:
Music has been found to cause actual change in brainwave. Researchers found that most music combines many different frequencies that cause a complex set of reactions in the brain, but researchers say specific pieces of music could enhance concentration or promote relaxation.

Mood:
A study found arousal and mood regulation to be the most important dimension of music listening closely followed by self-awareness.

Cognitive function:
Research has shown that upbeat music improves the efficiency and accuracy in performance of workers on assembly lines or quality-control operators. It helps them to stay focused on their work even though what they’re doing is not necessarily interesting, and attention would normally fade over time.

Anxiety:
When used in conjunction with conventional cancer treatments, music therapy has been found to help patients promote a better quality of life; better communicate their fear, sadness, or other feelings; and better manage stress, while alleviating physical pain and discomfort.

Patients:
There is sufficient practical evidence that listening to music while resting in bed after open heart surgery can reduce patients' stress level. Therefore it is recommended that music intervention be offered as an integral part of the multimodal regime offered to patients after cardiovascular surgery. It is a supportive source that increases relaxation. Music is also effective in under conditions and music can be utilized as an effective intervention for patients with depressive symptoms, geriatrics and in pain, intensive care or palliative medicine. However,  music used should be carefully selected incorporating a patient's own preferences to offer an effective method to reduce anxiety and to improve quality of life. The most benefit on health is seen in classic music, meditation music whereas heavy metal music or technosounds are even ineffective or dangerous and will lead to stress and/or life threatening arrhythmias.


References:
5 Science-Backed Reasons Why Music is Good for You (Health- Nov 11, 2014)
20 surprising, science-backed health benefits of music (USA Today- Dec 17, 2013)

Effects of music tempo upon submaximal cycling performance. (Scandinavian Journal of Medicine and Science in Sports- Aug 2010)
Music Enhances Performance and Perceived Enjoyment of Sprint Interval Exercise. (Medicine and Science in Sports and Exercise- Sep 8, 2014)
Effect of Rhythm on the Recovery From Intense Exercise (Journal of Strength and Conditioning Research- April 2013) 
Music improves sleep quality in students. (Journal of Advanced Nursing- May 2008)
Fast Food Restaurant Lighting and Music can reduce Calorie intake and increase Satisfaction
(Psychological Reports- Aug 2012) 
Positive Emotions and the Endothelium: Does Joyful Music Improve Vascular Health? (Circulation- 2008)
From music-beat to heart-beat: a journey in the complex interactions between music, brain and heart. (European Journal of Internal Medicine-Aug 2011)
Alleviating Choking: The Sounds of Distraction (Journal of Applied Sport Psychology- April 2009)
Symposium looks at therapeutic benefits of musical rhythm
 (Stanford News Service- May 2013)
The psychological functions of music listening (Frontiers in Psychology- May 24, 2013)
Music therapy in a comprehensive cancer center. (Journal of the Society of Integrative Oncology- Spring 2008)
Music and health--what kind of music is helpful for whom? What music not? (Published in a German Medical Journal- Dec 2009)













Monday, March 24, 2014

Lost sleep = Lost Brain Cells

Yes, you read right.
Insufficient sleep is not only detrimental for our physical health but a recent study says it also leads to brain cell death.

The study conducted at University of Pennsylvania School of Medicine was published in the latest issue of The Journal of Neuroscience. While studying lack of sleep in mice, the researchers noticed prolonged lack of sleep lead to 25% of certain brain cells dying. After further observation and research the team concluded that similar damage is most likely occurs in human too.

As explained in the abstract of the article, "Modern society enables a shortening of sleep times, yet long-term consequences of extended wakefulness on the brain are largely unknown. Essential for optimal alertness, locus ceruleus neurons (LCns) are metabolically active neurons that fire at increased rates across sustained wakefulness. We hypothesized that wakefulness is a metabolic stressor to LCns and that, with extended wakefulness, adaptive mitochondrial metabolic responses fail and injury ensues."

With prolonged sleep deprivation the processes that maintain a health metabolic homeostasis in the brain can not be sustained, hence may lead to significant irreversible injury.  Although much more research and work needs to be done to determine whether loss of sleep can lead to real brain damage.

In the end, for all of us who survive on minimal sleep, it is clearly time to make an extra effort to ensure we get a good prolonged sleep every night.



References:
Extended Wakefulness: Compromised Metabolics in and Degeneration of Locus Ceruleus Neurons (The Journal of Neuroscience -March 19th 2014) 
Lost sleep leads to loss of brain cells, study suggests (BBC World News- Health March 19th 2014)

Tuesday, January 21, 2014

Shift work clearly detrimental to health

It is a fact that doing the night shift at work is terribly hard. It not only affect our personal and social lives it also throws our whole sleep cycle into chaos. Now scientists at the Sleep Research Center Surrey have found definite proof that night work can lead to long term damage starting at molecular level. Night shift work has been linked to a higher risk of type 2 diabetes, heart attacks and cancer.

According to an article in BBC World News by James Gallagher;
'Experts said the scale, speed and severity of damage caused by being awake at night was a surprise.

The human body has its own natural rhythm or body clock tuned to sleep at night and be active during the day.
It has profound effects on the body, altering everything from hormones and body temperature to athletic ability, mood and brain function.'

Scientists observed 22 individuals as their bodies adjusted from their normal patterns to working the night shift. Preliminary blood test showed that 6% genes had precise daily activity cycles. As the individuals got into a night work routine, these cycles were thrown off. 
The researchers call this 'Chrono-Chaos', here the scientists on the team explain it;

"Over 97% of rhythmic genes become out of sync with mistimed sleep and this really explains why we feel so bad during jet lag, or if we have to work irregular shifts," said Dr Simon Archer, one of the researchers at the University of Surrey.
Fellow researcher Prof Derk-Jan Dijk said every tissue in the body had its own daily rhythm, but with shifts that was lost with the heart running to a different time to the kidneys running to a different time to the brain.
He told the BBC: "It's chrono-chaos. It's like living in a house. There's a clock in every room in the house and in all of those rooms those clocks are now disrupted, which of course leads to chaos in the household."
Prof Dijk added: "We of course know that shift work and jet lag is associated with negative side effects and health consequences.
"They show up after several years of shift work. We believe these changes in rhythmic patterns of gene expression are likely to be related to some of those long-term health consequences."

According to Web MD about 8.6 million people do shift work, meaning either they work the night shift or they rotate shifts during the week.  These include police officers, firefighters, nurses, doctors, pilots, waitresses, truck drivers, and many more professionals. Even a personal trainer who works out at the gym with clients in the early mornings and evenings is a shift worker.
Some of the short term health problems seen more commonly in shift workers are; 
  • Gastrointestinal symptoms like upset stomach, nausea, diarrhea, constipation, and heartburn
  • Increased risk of injuries and accidents
  • Insomnia
  • Decreased quality of life
  • General feeling of being unwell

Whereas the long term effects on health are harder to measure but there has been compelling proof that shift workers might be more prone to these long term medical problems;
  • Cardiovascular disease
  • Diabetes and Metabolic Disorder
  • Depression and Mood Disorders
  • Serious Gastrointestinal Problems
  • Obesity
  • Problems with Fertility and Pregnancy
  • Cancer
 Although most of these long term effects may occur only after decades of disruptive shift work, but some health problems might develop much faster. For many professions shift work is inevitable, hence can not be completely avoided. In those cases, here are some suggestions on the Web MD to help minimize the damage:
  • Eat Well and Exercise
  • Get enough Sleep
  • Change your Schedule
  • See your Doctor

P.S:
References
Night work 'throws body into chaos' (BBC World News)
The Health Risks of Shift Work (Web MD)