Tag: Epinephrine

Anxiety Hurts

Everybody knows what anxiety feels like – it’s annoying and counterproductive and apparently useless, so why does it exist? It turns out your anxiety isn’t useless at all – it’s a result of the sympathetic nervous system (in charge of the fight or flight response), which lets you respond immediately to threats and can also help you meet that looming deadline. But you don’t want your SNS running the whole show – chronic anxiety not only feels crappy, it damages your cells, alters your brain chemistry, and can exacerbate a wide range of health problems. Hank has the whole story in this episode of SciShow.Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Tardigrade Poster: http://vid.io/xom SciShow Mug: http://vid.io/xoa SciShow Shirt: http://vid.io/xog — Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.comReferences: Oxidative Stress & Anxiety http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2763246/ Depression & Chronic Stress Accelerates Aging http://www.sciencedaily.com/releases/2011/11/111109093729.htm 10 Stress-Related Health Problems You Can Fix http://www.webmd.com/balance/stress-management/features/10-fixable-stress-related-health-problems Relationship Between Oxidative Stress and Anxiety: Emerging role of antioxidants within therapeutic or preventative approaches http://cdn.intechopen.com/pdfs/17568/InTech-Relationship_between_oxidative_stress_and_anxiety_emerging_role_of_antioxidants_within_therapeutic_or_preventive_approaches.pdf

The Long-term Effects of Stress

This video is intended to spread awareness about the long-term effects of stress. Everyone experiences stress everyday, it can come from any source. Some examples include emotional, physical or job related stress. Stress is our body’s primitive way of responding to any kind of internal or external demand or threat. The short-term effects of stress may not be serious but prolonged exposure to stress can lead to very serious long-term effects on the body. Thus, this video will be outlining the some of the long-term effects on the body such as an increase in heart attacks, obesity and development of diabetes. This video will also be discussing the three stress hormones; cortisol, epinephrine and norepinephrine. Cortisol, which is the major stress hormone, is released from the adrenal cortex. Epinephrine which is also referred to as adrenaline and norepinephrine, referred to as noradrenaline are released from the adrenal medulla.This video was made by 4DM3 students Vyshnavi Mahendran, Tamandeep Khangura, Humaira Nakhuda, Mateen Akhtar and Andrew Nashed. Copyright McMaster University 2016Please let us know how we can improve our videos and additional topics should be addressed below.References: Al’Abadie, M. S., Kent, G. G., & Gawkrodger, D. J. (1994). The relationship between stress and the onset and exacerbation of psoriasis and other skin conditions. British Journal of Dermatology, 130(2), 199-203. Asthma and Allergy Foundation of Amercia. (2015) Asthma facts and Figures. (n.p). Retrieved October 18,2016 from http://www.aafa.org/page/asthma-facts.aspx Bhatia, V., & Tandon, R. K. (2005). Stress and the gastrointestinal tract. Journal of gastroenterology and hepatology, 20(3), 332-339. Deanfield, J., Kensett, M., Wilson, R., Shea, M., Horlock, P., De Landsheere, C., & Selwyn, A. (1984). Silent myocardial ischaemia due to mental stress. The Lancet, 324(8410), 1001-1005. Desborough, J. P. (2000). The stress response to trauma and surgery. British journal of anaesthesia, 85(1), 109-117. Ghiadoni, L., Donald, A. E., Cropley, M., Mullen, M. J., Oakley, G., Taylor, M., … & Deanfield, J. E. (2000). Mental stress induces transient endothelial dysfunction in humans. Circulation, 102(20), 2473-2478. Health Canada. (2008). Mental Health-Coping with Stress (n.p). Retrieved October 18, 2016, from http://www.hc-sc.gc.ca/hl-vs/iyh-vsv/life-vie/stress-eng.php Kemeny, M. E. (2003). The psychobiology of stress. Current directions in psychological science, 12(4), 124-129. Lundberg, U. (2005). Stress hormones in health and illness: the roles of work and gender. Psychoneuroendocrinology, 30(10), 1017-1021. Ranabir, S., & Reetu, K. (2011). Stress and hormones. Indian journal of endocrinology and metabolism, 15(1), 18. Statistics Canada.(2014).Overweight and obese adults (n.p). Retrieved October 21, 2016, from http://www.statcan.gc.ca/pub/82-625-x/2015001/article/14185-eng.htm Steptoe, A., & Kivimäki, M. (2012). Stress and cardiovascular disease. Nature Reviews Cardiology, 9(6), 360-370. Surwit, R. S., Schneider, M. S., & Feinglos, M. N. (1992). Stress and diabetes mellitus. Diabetes care, 15(10), 1413-1422. Torres, S. J., & Nowson, C. A. (2007). Relationship between stress, eating behavior, and obesity. Nutrition, 23(11), 887-894. World Health Organization.(2016). Global report on Psoriasis. Retrieved October 18, 2016, from http://apps.who.int/iris/handle/10665/204417

How stress affects your body – Sharon Horesh Bergquist

View full lesson: http://ed.ted.com/lessons/how-stress-affects-your-body-sharon-horesh-bergquistOur hard-wired stress response is designed to gives us the quick burst of heightened alertness and energy needed to perform our best. But stress isn’t all good. When activated too long or too often, stress can damage virtually every part of our body. Sharon Horesh Bergquist gives us a look at what goes on inside our body when we are chronically stressed.Lesson by Sharon Horesh Bergquist, animation by Adriatic Animation.