Why sitting up straight is really important

A bad posture doesn't only make us look unsmart and slouchy, it can lead to some serious health problems. Some of the commonly reported negative effects of a poor posture are;

Sore Muscles:
Because of our slouch our muscles have to work harder to keep the spine and vertebrae in place and protected, we end up with sore muscles by the end of the day.

Spinal Curvature:
A poor posture overtime can cause us to develop a spinal curvature which may effect the weight bearing capability of our spine. Naturally our spines have an "S" shape which is exacerbated with a slouch.

Subluxations:
A subluxation of the spine is the displacement of vertebrae from their normal position. It is a vertebral misalignment which often results from the altered spinal curvature. This leads to a painful back and also may affect the integrity of the whole spine.

Blood vessels constriction:
The altered spinal curvature and resulting subluxation of spine may lead to constriction of blood vessels traveling through the spinal cord. Thus cause blood flow constriction which may cause poor blood supply to muscles and nerves and can even lead to clot formation. Clot formation can be life-threatening as it can lead to deep vein thrombosis.

Nerve constriction:
As nerves are connected to the spinal cord through the length of the spine, any change in its curvature or alignment of vertebrae can lead to their constriction and cause pain in any part of the body. Most often seen are pain in the back or neck.

Here is a great article on first of all improving posture but also with tips on how to fix a bad posture.

Post by Health, Wellness and Mindfulness.



References:

Negative Effects of Poor Posture  (LIVESTRONG.com)

Teenage cannabis use and schizophrenia

With the growing wave of legalizing marijuana use across the US, it is important to fully understand the possible consequences of expected increase in it's unrestricted use, specially amongst the youth. A group of scientist at the Feinberg School of Medicine and Northwestern Memorial Hospital have conducted a study which has found a link between teenage Marijuana (Cannabis) use and schizophrenia. This study was published by Schizophrenia Bulletin

The brains of teenagers smoking cannabis daily for about three years showed significant structural changes affecting memory. Some of those changes appear very similar to those seen in the brains of schizophrenics.These youngsters also performed badly when tested on memory tasks, indicating poor memory functioning.


As reported by Marla Paul for Northwestern University on Futurity;

This is the first study to target key brain regions in the deep sub-cortical gray matter of chronic marijuana users with structural MRI and to correlate abnormalities in these regions with an impaired working memory.
Working memory is the ability to remember and process information in the moment and—if needed—transfer it to long-term memory. Previous studies have evaluated the effects of marijuana on the cortex, and few have directly compared chronic marijuana use in otherwise healthy individuals and individuals with schizophrenia.

According to the lead study author Mathew Smith an assistant research professor in psychiatry and behavioral sciences at Northwestern University Feinberg School of Medicine; 

“The study links the chronic use of marijuana to these concerning brain abnormalities that appear to last for at least a few years after people stop using it. With the movement to decriminalize marijuana, we need more research to understand its effect on the brain.”

 But in contrast to these findings another study conducted at the Institute of Psychiatry at King's College London, has shown a genetic link between cannabis use and schizophrenia. Kate Kelland  reports for Reuters that;

The results chime with previous studies linking schizophrenia and cannabis, but suggest the association may be due to common genes and might not be a causal relationship where cannabis use leads to increased schizophrenia risk. 

 "We know that cannabis increases the risk of schizophrenia. Our study certainly does not rule this out, but it suggests that there is likely to be an association in the other direction as well – that a pre-disposition to schizophrenia also increases your likelihood of cannabis use," said Robert Power, who led the study at the Institute of Psychiatry at King's College London.

But what become evident from both these recent studies is the clear connection between adolescent use of cannabis and the development of schizophrenia. Therefore it is important for parents to discourage their children from getting swept up in this growing wave of legal recreational use of marijuana. We need to educate ourselves and our children on the very real dangers and consequences of indiscriminate use of marijuana.
 



References:

Teen marijuana use linked with schizophrenia (Futurity-January 3, 2014)

Study finds genetic links between schizophrenia and cannabis use (Reuters-June 24, 2014)

Cannabis-Related Working Memory Deficits and Associated Subcortical Morphological Differences in Healthy Individuals and Schizophrenia Subjects  (Schizophrenia Bulletin-December 15, 2013)

Genetic predisposition to schizophrenia associated with increased use of cannabis (Molecular Psychiatry-June 24, 2014)

Another reason why sitting in front of computer screens for hours on is not a good idea

Post by Health, Wellness and Mindfulness.

Here is why writing by hand should not be forgotten

Post by Health, Wellness and Mindfulness.