According to a study conducted by Teresa Janevic, an assistant professor at Rutgers School of Public Health's Department of Epidemiology, men who reported more stressful events in their life or who had current feelings of stress experienced negative effects on their sperm. These effects included sperm not forming correctly as well as not moving properly. In addition, there was a decline in the overall number of sperm. However, the study failed to connect specific levels of stress to specific negative effects on sperm. Additional information on this study can be found at:

http://health.usnews.com/health-news/articles/2014/05/30/do-stressed-out-men-have-weaker-sperm ​

​According to a study published in Frontiers in Psychology men and women perceive the pleasantness and exposure to scents different. [1] The participants included 18 subjects between 20 and 36 years of age, half of which were men and half were female. Three different scents were repeatedly sprayed 40 times in random order with a pause of 18 seconds in between. The results were that both men and women equally did not want the same odor time, however the pleasantness factor declined more sharply for men than women. [2] More information can be found at:

http://journal.frontiersin.org/Journal/10.3389/fpsyg.2014.00526/full

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[1] http://journal.frontiersin.org/Journal/10.3389/fpsyg.2014.00526/full

[2] Triscoli C, Croy I, Olausson H and Sailer U (2014) Liking and wanting pleasant odors: different effects of repetitive exposure in men and women. Front. Psychol. 5:526. doi: 10.3389/fpsyg.2014.00526

​According to the Max Planck Institute for Cognitive Sciences in Leipzig, Germany, stress can be contagious. In the study researchers viewed couples through a one-way mirror. Their findings indicated that one partner’s unease transferred to their mate. In addition researchers found that even strangers, who viewed stressful situations by other individuals via video, experienced the same spike in the stress hormone cortisol. According to Veronika Engert, one of the study’s authors, “(the results suggest) that even television programs depicting the suffering of other people can transmit that stress to viewers.”[1] More information can be found at:

http://psychcentral.com/news/2014/05/01/stress-can-be-contagious/69238.html

[1] http://psychcentral.com/news/2014/05/01/stress-can-be-contagious/69238.html