Study Claims Stress And Depression Is Shrinking Your Brain
Aug 15, 2012 10:12
A study published in the journal Nature Medicine states that severe depression and chronic stress can shrink the brain by blocking the formation of new nerve connections. This thought to contribute to shrinkage of the brain's prefrontal cortex, which is known to occur in MDD sufferers.
For the study, researchers at Yale analyzed tissue of depressed and non-depressed patients who had died of MDD. They looked for different patterns of gene activation, and found that those in depression exhibited lower levels of expression in genes that are required for the function and structure of brain synapses.
Evidence pointed to the involvement of a single genetic "switch", or transcription factor - a protein called GATA1. Further studies on rats showed that when GATA1 was switched on, the rodents showed signs of depression.
The findings suggest that loss of brain synapses may be linked to depressive symptoms as well as mental impairment. The researchers hope that these genetic variations in GATA1 may one day help identify people at high risk and help improve treatment methods.
This mom of 3 kids is really into fitness, and she has workout tutorials on her Instagram for you to follow. Check out some of her workouts here. We have listed down 10 workouts which you can follow. Be sure to follow her Instagram, too! You might be inspired on how she managed to lose all the fats after giving birth! Read more
Whether you're training for an event this year or are simply struggling to get your nutrition right for exercise, these are top 11 foods that runners need every week for good health and top performance. Read more
Injuries are common when exercising or playing sport, but the chances of sustaining an injury can be reduced with the right equipment. Mats can be put down in gyms and similar spaces, and these can absorb contact and allow people to train safely and with confidence. Read more