home
RSS
Too much TV could damage sperm production
February 4th, 2013
06:32 PM ET

Too much TV could damage sperm production

Semen quality is a much-discussed subject among scientists these days. Data suggests sperm concentration has been declining in Western countries over the past couple of decades - and reasons for the decline are debatable.

The lead author of a new study on the subject, Audrey Gaskins, has been studying the effects of diet and exercise on semen for several years as a doctoral candidate at the Harvard School of Public Health. Her latest research shows a lack of physical activity – and too much time in front of the television - may impact sperm count and concentration.

Previous studies have shown a link between physical activity and decreased levels of oxidative stress, Gaskins says. “Oxidative stress” is stress placed on the body as it tries to get rid of free radicals or repair the damage caused by them. Exercise may protect certain male cells from oxidative damage, Gaskins says, leading to increased sperm concentration.

Those findings led Gaskins to complete an observational study on young men’s exercise and TV habits as they relate to semen quality. The results were published online Monday in the British Journal of Sports Medicine.

The study

Gaskins and her colleagues asked 189 healthy men between the ages of 18 and 22 how often they exercised each week and how intensely they worked out. The study participants also recorded their TV watching habits.

Then at the clinic, semen samples were collected from each man. The semen was analyzed for sperm size and shape, motility, concentration and total sperm count.

The researchers also conducted a physical examination and looked at the men’s diet, body weight, reproductive history, stress levels and smoking habits to rule out other potential causes of their findings.

The results

The men who did moderate to vigorous exercise 15 hours or more per week had a significantly higher sperm concentration than those who worked out less than five hours a week. And the men who watched more than 20 hours of TV a week had almost half the sperm concentration as the men who watched zero hours a week.

Gaskins says the researchers found these associations between TV, exercise and sperm concentration regardless of the men’s diet, body weight or smoking habits.

Sperm motility and size/shape did not appear to be affected by exercise or time spent in front of the TV.

The caveats

The data used in this study came from a relatively small group of men, meaning it may not translate well to the general population as a whole. And only one semen sample was collected from each man; that sample could have been different from the participant’s “normal” levels.

The data was also self-reported – i.e., the study participants could have elaborated or underestimated the amount of time they spent doing a particular activity.

Observational studies like this (that don’t include a separate control group) make it impossible to prove a cause-and-effect relationship, Gaskins says. While there appears to be a link between physical activity and sperm concentration, the two could really be unrelated.

It’s also “not possible to conclude from these findings whether the observed differences in sperm counts translate into clinically relevant difference in fertility,” the study authors write.

The takeaway

This study doesn’t conclusively prove physical activity boosts your fertility, or that watching too much TV damages your sperm. But there is plenty of research out there on the other benefits of exercise.

Do yourself – and potentially your little swimmers – a favor by staying active. If that means giving up some TV time, so be it.


soundoff (631 Responses)
  1. RV Repair Near Me Now

    https://bizfinder.registerguard.com/__media__/js/netsoltrademark.php?d=https://www.ocrvcenter.com/rv-restoration-near-me/

    June 17, 2021 at 01:37 | Report abuse | Reply
  2. t-mobile near me

    http://e-presidents-choice.com/__media__/js/netsoltrademark.php?d=ocrvcenter.com/

    June 17, 2021 at 04:26 | Report abuse | Reply
  3. Camper Repair Places Near Me

    I have to thank you for the efforts you've put in writing this blog. I really hope to see the same high-grade blog posts by you later on as well. In fact, your creative writing abilities has motivated me to get my own, personal site now 😉

    http://shinobi.jp/etc/goto.html?ocrvcenter.com/motorhome-collision-repair-shop-near-me

    June 17, 2021 at 05:42 | Report abuse | Reply
  4. RV Repairs Near Me

    Everything is very open with a very clear description of the challenges. It was truly informative. Your site is useful. Many thanks for sharing!

    http://go.20script.ir/index.php?url=https://www.ocrvcenter.com/rv-repair-shop-fountain-valley-california/

    June 17, 2021 at 10:05 | Report abuse | Reply
  5. entry level jobs near me

    http://ratemydoctor.com/__media__/js/netsoltrademark.php?d=bjsnearme.com

    June 17, 2021 at 13:09 | Report abuse | Reply
  6. gun range near me

    http://www.astro.wisc.edu/?URL=http://www.bestservicenearme.com/

    June 17, 2021 at 13:50 | Report abuse | Reply
  7. asian massage near me

    http://www.photolinks.com/__media__/js/netsoltrademark.php?d=masternearme.com

    June 17, 2021 at 15:20 | Report abuse | Reply
  8. protests near me

    http://serwis.lagiewniki.zhp.pl/index.php?option=com_loudmouth&task=derefer&url=www.bjsnearme.com/

    June 17, 2021 at 18:53 | Report abuse | Reply
  9. covid rapid test near me

    This excellent website definitely has all of the information and facts I needed concerning this subject and didnít know who to ask.

    https://www.geokniga.org/ext_link?url=https://masternearme.com/

    June 17, 2021 at 23:25 | Report abuse | Reply
  10. auto parts store near me

    Saved as a favorite, I like your site!

    http://lutheran.com/__media__/js/netsoltrademark.php?d=masternearme.com/

    June 18, 2021 at 04:59 | Report abuse | Reply
  11. dog adoption near me

    https://plt.crmplatform.nl/nieuwsbrief/actions/2.vm?id=2495448&url=https://www.bjsnearme.com

    June 18, 2021 at 06:48 | Report abuse | Reply
  12. Floyd Hiedeman

    Have you ever heard of second life (sl for short). It is basically a game where you can do anything you want. SL is literally my second life (pun intended lol). If you want to see more you can see these Second Life authors and blogs

    http://everydayliteracies.blogspot.com/2006/03/well-thats-just-damn-interesting.html?m=0

    June 18, 2021 at 10:19 | Report abuse | Reply
  13. Sprinter Repair Shops Near Me

    Hi there! This blog post couldnít be written any better! Looking at this post reminds me of my previous roommate! He always kept talking about this. I'll forward this post to him. Pretty sure he'll have a good read. Thank you for sharing!

    https://accounts.cast.org/register.php?home=https://www.ocrv.club/camper-van-collision-repair-shop-near-me/

    June 18, 2021 at 12:12 | Report abuse | Reply
  14. RV Repair Huntington Beach

    An intriguing discussion is worth comment. I think that you need to publish more on this subject, it might not be a taboo subject but generally people don't talk about such subjects. To the next! Best wishes!!

    http://otohits.net/home/redirectto?url=www.ocrvcenter.com/rv-driver-seat-repair-near-me/

    June 18, 2021 at 17:24 | Report abuse | Reply
  15. RV Repair Shops Near Me Now

    http://www.americantourister.com/disneyside/bumper.php?r=http://www.ocrvcenter.com/tractor-truck-collision-repair-shop-near-me

    June 18, 2021 at 18:33 | Report abuse | Reply
  16. at&t store near me

    I blog quite often and I genuinely appreciate your information. Your article has really peaked my interest. I'm going to take a note of your site and keep checking for new details about once a week. I opted in for your Feed as well.

    https://www.cropscience.bayer.ca/?setlanguage=en&returnUrl=https://bestlocalnearme.com

    June 18, 2021 at 21:44 | Report abuse | Reply
  17. RV Repair Near Me

    https://www.earth-policy.org/?URL=www.ocrv.guru/rv-repair-shop-san-marino-california

    June 18, 2021 at 21:59 | Report abuse | Reply
  18. RV Repair Around Me

    https://www.it.paltalk.com/client/webapp/client/External.wmt?url=ocrv.info/class-6-truck-collision-repair-paint-shop-near-me-orange-county

    June 18, 2021 at 23:23 | Report abuse | Reply
  19. RV Repair Shop Near My Location

    Iím amazed, I must say. Rarely do I come across a blog thatís equally educative and amusing, and without a doubt, you've hit the nail on the head. The problem is something that too few folks are speaking intelligently about. I'm very happy that I found this during my hunt for something regarding this.

    http://www.loome.net/demo.php?url=http://www.ocrv.me/fleet-truck-collision-repair-shop-near-me/

    June 19, 2021 at 00:39 | Report abuse | Reply
  20. speedway near me

    This is a topic which is close to my heart... Cheers! Where are your contact details though?

    http://t.ants.vn/a1/c/?bc=af837a70c7,l1486771201959,1486882192,v,1,568743473,568730659,568732269,31648,1,583125423,583125416,5,0_1&t_s=568743473-583125423-568732269:1&t_z=&t_tp=&t_itr=&t_imk=&t_rm=&c_tp=31647:1&c_itr=-1:-1&c_imk=-1:-1&c_rm=&redirect=http://bestlocalnearme.com/

    June 19, 2021 at 03:11 | Report abuse | Reply
  21. Sprinter Repair Shops Near Me

    https://migrantcinema.net.gridhosted.co.uk/?URL=https://ocrvcenter.com/rv-repair-shop-upland-california/

    June 19, 2021 at 04:40 | Report abuse | Reply
  22. RV Repair Shops Nearby

    http://www.ww17.yourname.com/__media__/js/netsoltrademark.php?d=ocrv.biz/rv-repair-shop-perris-california/

    June 19, 2021 at 05:08 | Report abuse | Reply
  23. RV Repairs Near My Location

    http://georgewbushlibrary.smu.edu/exit.aspx?url=ocrvcenter.biz/rv-upgrades-near-me

    June 19, 2021 at 08:48 | Report abuse | Reply
  24. RV Repair Near Me

    http://www.ams.ceu.edu/optimal/optimal.php?url=https://ocrvcenter.com/rv-sound-system-repair-near-me/&refresh=1

    June 19, 2021 at 12:45 | Report abuse | Reply
  25. RV Repair Around Me

    Aw, this was an extremely good post. Taking a few minutes and actual effort to produce a really good articleÖ but what can I sayÖ I procrastinate a lot and don't manage to get nearly anything done.

    https://maps.google.hr/url?q=https://southampton.ac.uk

    June 19, 2021 at 14:24 | Report abuse | Reply
  26. RV Repair Shops Near Me Now

    http://asm.com/Pages/Press-releases/ASMI-ANNOUNCES-AVAILABILITY-AND-TIMING-OF-THE-FIRST-QUARTER-2018-CONFERENCE-CALL-AND-WEBCAST.aspx?overview=https://ocrvcenter.com/rv-repair-shop-national-city-california/

    June 19, 2021 at 18:51 | Report abuse | Reply
  27. RV Repair Near My Location

    https://www.proteinaute.com/lib/request/redirect.php?url=www.ocrvcenter.com/rv-repair-shop-santa-clarita-california

    June 19, 2021 at 20:13 | Report abuse | Reply
  28. RV Repair Shops Near My Location

    https://www.lipperhey.com/en/http://ocrvcenter.com/rv-repair-shop-burbank-california/

    June 19, 2021 at 20:58 | Report abuse | Reply
  29. RV Repair Around Me

    http://localbusiness.nwfdailynews.com/__media__/js/netsoltrademark.php?d=http://ocrvluxurycoaches.com/services/

    June 19, 2021 at 21:49 | Report abuse | Reply
  30. RV Repairs Near Me

    https://fr.paltalk.com/client/webapp/client/External.wmt?url=ocrv.guru/rv-repair-shop-moreno-valley-california

    June 19, 2021 at 21:50 | Report abuse | Reply
  31. RV Repair Orange County

    https://client.paltalk.com/client/webapp/client/External.wmt?url=www.payskip.org/tfcAvx3MGdJu/

    June 19, 2021 at 22:20 | Report abuse | Reply
  32. Internet Marketing Company Near Me

    https://ww31.dxnnet.com/__media__/js/netsoltrademark.php?d=http://affordableranking.com/

    June 20, 2021 at 00:48 | Report abuse | Reply
  33. Social Media Marketing Experts

    An impressive share! I have just forwarded this onto a colleague who was conducting a little homework on this. And he actually ordered me breakfast due to the fact that I discovered it for him... lol. So let me reword this.... Thanks for the meal!! But yeah, thanks for spending the time to discuss this subject here on your internet site.

    http://flagstarhomelending.com/__media__/js/netsoltrademark.php?d=https://www.affordableranking.com

    June 20, 2021 at 07:27 | Report abuse | Reply
  34. Internet Marketing Consultants

    https://dosanddonts.com/__media__/js/netsoltrademark.php?d=www.https://affordableranking.com/

    June 20, 2021 at 10:20 | Report abuse | Reply
  35. Arlie Swymer

    http://www.l214.com/lettres-infos/partage/?nom=7ème+jour:+les+poulets+de+chair&url=https://ocrv.mobi/

    June 20, 2021 at 11:17 | Report abuse | Reply
  36. Roberto Olnick

    https://map.google.bj/url?q=https://autopartsservicenearme.com

    June 20, 2021 at 13:09 | Report abuse | Reply
  37. Raymond Tasler

    There's certainly a lot to find out about this topic. I love all of the points you've made.

    http://creativecommons.org/choose/results-one?field_attribute_to_url=https://www.lacapillacantina.com

    June 20, 2021 at 17:36 | Report abuse | Reply
  38. att store near me

    https://www.ftijournal.com/?URL=bjsnearme.com

    June 20, 2021 at 22:07 | Report abuse | Reply
  39. RV Repair Shops Near Me

    Spot on with this write-up, I seriously believe this amazing site needs a great deal more attention. Iíll probably be back again to see more, thanks for the information!

    http://lupusinfo.us/__media__/js/netsoltrademark.php?d=ocrvcenter.com

    June 20, 2021 at 23:35 | Report abuse | Reply
  40. RV Repair Near Me Now

    Right here is the perfect blog for everyone who wishes to understand this topic. You understand a whole lot its almost hard to argue with you (not that I really would want toÖHaHa). You certainly put a brand new spin on a topic that's been written about for ages. Excellent stuff, just wonderful!

    http://hartfordlifelimitedsucks.com/__media__/js/netsoltrademark.php?d=ocrvcenter.com

    June 21, 2021 at 03:59 | Report abuse | Reply
  41. Antoine Brazelton

    I'm studying Journalism at the University of Minnesota, and I am looking for a good website to start blogging on. I'm mostly looking for a good sports blogging website, but a music website would also be of interest. I've heard about Bleacher Report, is that one of the main sites?.

    https://twitter.com/katekdesigns

    June 21, 2021 at 05:02 | Report abuse | Reply
  42. Camper Repairs Near Me

    Howdy, There's no doubt that your web site might be having internet browser compatibility problems. When I take a look at your blog in Safari, it looks fine but when opening in I.E., it's got some overlapping issues. I just wanted to provide you with a quick heads up! Aside from that, fantastic website!

    https://ullafyr.com/gjestebok/go.php?url=https://ocrvcenter.com/

    June 21, 2021 at 08:20 | Report abuse | Reply
  43. Jeannine Belleau

    WordPress is up and running on my host - but it completely mismatches my site's existing theme/CSS. How hard would it be to modify/write a new theme to make it fit in? Is there an easier way to do this?.

    https://www.facebook.com/KateKowalskyWebMarketing

    June 21, 2021 at 08:29 | Report abuse | Reply
  44. physical therapy near me

    http://panamschool.org/__media__/js/netsoltrademark.php?d=bestshopnearme.com

    June 21, 2021 at 12:23 | Report abuse | Reply
  45. Van Mechanic Shop

    Howdy! This post couldnít be written much better! Going through this article reminds me of my previous roommate! He constantly kept talking about this. I most certainly will send this article to him. Pretty sure he'll have a good read. Thanks for sharing!

    http://cleaningvalidation.info/__media__/js/netsoltrademark.php?d=sprintervanrepairshop.com/

    June 21, 2021 at 13:36 | Report abuse | Reply
  46. RV Repair Shop Near My Location

    Very good info. Lucky me I ran across your website by accident (stumbleupon). I have book marked it for later!

    https://legacy.aom.org/verifymember.asp?nextpage=https://ocrvmotorsports.biz/

    June 21, 2021 at 15:25 | Report abuse | Reply
  47. Jerald Likar

    Have you ever heard of second life (sl for short). It is essentially a online game where you can do anything you want. sl is literally my second life (pun intended lol). If you would like to see more you can see these second life websites and blogs

    http://myvedana.blogspot.com/2007/03/video-on-video-games.html?m=0

    June 21, 2021 at 16:06 | Report abuse | Reply
  48. daycares near me

    Hello there! I just would like to offer you a huge thumbs up for your great info you've got here on this post. I am returning to your website for more soon.

    https://www.formdoc.com/__media__/js/netsoltrademark.php?d=earme.a2hosted.com/

    June 21, 2021 at 20:29 | Report abuse | Reply
  49. Paul Bermingham

    Have you ever heard of second life (sl for short). It is basically a video game where you can do anything you want. Second life is literally my second life (pun intended lol). If you want to see more you can see these sl authors and blogs

    http://lostbiro.com/blog/?page_i&paged=98

    June 21, 2021 at 20:47 | Report abuse | Reply
  50. junkyards near me

    http://www.internethostpilot.com/__media__/js/netsoltrademark.php?d=earme.a2hosted.com/

    June 21, 2021 at 20:53 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13

Post a comment


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.