Here,s some infomation, that you might won't to know. Looks like some good shit if your planning on having sex 67 times in 3 hrs.
Although folklore abounds regarding the utility of maca for general health and increased libido, a search of the scientific literature from the past two decades reveals limited information as to the worth of maca for sexual function and desire. However, one recent study published (as an abstract) in the journal Urology (Zheng et al., April 2000) does give promising results. Male rodents were given maca extract (or a control) and placed with female rodents. Voyeuristic scientists then recorded how many “mating events” occurred, how many sperm-positive females resulted, and how long it took for male rats to achieve erection. The results revealed that in rodents receiving maca instead of a control, there were more mating events, more sperm-positive females, and fewer rats that consulted their urologists in hopes of obtaining Viagra. The maca-free mice had sex a mere 13 times in 3 hours, but the mice who received maca (Maca-Pure from PureWorld) did it 67 times! The few other scientific studies pertaining to maca relate to its nutritional value. It appears that maca is a good enough source of nutrients that in economically-depressed rural areas, consumption of maca can help combat malnutrition. Although scientific studies do not exist that would support the use of maca in improving energy, memory, or fighting depression, it is conceivable that in people who are malnourished in some way, its nutritional value alone could improve mood and mental function.