Male Cyclists Risk Sexual Problems If They Don't Choose The Right Bike Palo Alto Issues, posted by woody, a resident of the Barron Park neighborhood, on Jul 9, 2008 at 1:41 pm
Men who take up cycling in an effort to stay fit, do their bit for the environment or avoid spiralling motoring costs, could be harming their health if they don't choose the right bicycle.
The problems to look out for include genital numbness, erection problems and soreness and skin irritations in the groin area.
Men who cycle a lot can also experience changes to their sperm function, because of the excessive heat generated in the pelvic area.
Regular cyclists also run a higher risk of testicular damage and impaired testicular function.
Mountain bikers run a particular risk, says Mr Nargund, as studies have shown that they exhibit higher levels of scrotal abnormalities than on-road cyclists.
More than 60 per cent of male cyclists who have taken part in research studies have reported genital numbness.
There is a greater incidence of numbness and erectile problems in men who cycle regularly and over longer training distances.Web Link
Posted by RS, a resident of the Duveneck/St. Francis neighborhood, on Jul 9, 2008 at 2:34 pm
This issue has been well known in the cycling community for quite some time. People that experience it, typically have to choose a different saddle, or have their saddle leveled properly.
"That is a disturbing statistic that 60% of cyclists are damaged"
That was his study. It's not clear his study extrapolates to the general population from the article.
"I am glad I use a motorcycle"
So are you promoting this as a safer healthier alternative to bicycling? ;^)
Posted by Dave, a resident of the Midtown neighborhood, on Jul 9, 2008 at 3:27 pm
This presents a certain dilemma in liberal Palo Alto.
It becomes a choice, at the extreme, of reducing carbon footprint vs. barren marriages.
Imagine a scenario where the 10th grade teacher, in Palo Alto, lectures her male students about the danger of joining the military:
"If you guys want to have granchildren, don't listen to the military recruiters! Why don't you commit, with enthusiasm, to reduce the carbon footprint?"
Clearly, the answer, back to the teacher is that it is much safer to join the military, if one wants to have grandchildren.
Posted by paul h, a resident of the Downtown North neighborhood, on Jul 10, 2008 at 12:26 pm
This syndrome has been known about for some time but is typically faced with denial.
Customers should be informed of the risks at the time of purchase and children should be educated as to the dangers to their reproductive organs with a view to prevention
Posted by jr, a resident of the Professorville neighborhood, on Jul 10, 2008 at 4:10 pm
1. Riding a bike is dangerous no matter how considerate the drivers, at least in the car-intensive cities of the United States (maybe not in Amsterdam). Furthermore accidents and potential accidents impose costs on both parties and more generally Coasian externalities are symmetric. The first best equilibrium involves less mutual contact and the cheapest way to bring that about is probably to discourage biking. (After all, they're the ones who can be scared off with risk of death and dismemberment.) That means road rules which discriminate against the interests of bikers.
2. If a bike has to stop and wait ten seconds for a car, that biker loses ten seconds of travel time. If a car has to stop and wait ten seconds for a bike, the driver loses ten seconds of travel time. The expected loss in distance traveled is much greater for the car, especially in areas where cars are going fast (i.e., the disputed areas when safety is a concern). Furthermore the cars are more likely inhabited by people with a higher value for their time, at least on average if not for every biking blogger.
Could sacrificing a tooth enable some infertile men to father children? That's the goal of researchers in Brazil, who suggest that stem cells from human teeth can be coaxed into becoming sperm by injecting them into the testes of mice.
Irina Kerkis of the Butantan Institute, São Paulo, and her colleagues injected stem cells from the dental pulp of human teeth into the testes of live mice.
The cells seemed to migrate to the tubules where sperm usually mature and differentiate into cells resembling human sperm.
However, the process was inefficient and some of the human cells fused with mouse cells – a problem that would have to be solved before the technique could be used therapeutically.