Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes GAH-meetzare involved.
Researchers studied more than 3, Danish cis men ages 18 to 20 and found that those who followed a vegetarian diet had higher sperm counts than those who eat a lot of red meat and junk food like pizza, burgers, candy, and chips — Switching to a healthy vegan diet rich in fruit, vegetables, and whole grains while young could help prevent fertility issues later in life. Men on a Western diet had lower levels of the chemical inhibin-B, which may signal damage to sperm-producing Sertoli cells.
Sperm competition is a form of post-copulatory sexual selection  whereby male ejaculates simultaneously physically compete to fertilize a single ovum. Physiological evidence, including testis size relative to body weight and the volume of sperm in ejaculations, suggests that humans have experienced a low-to-intermediate level of selection pressure for sperm competition in our evolutionary history. Evidence suggests that, among the great apes, relative testis size is associated with the breeding system of each primate species.
You can increase your sperm volume by making simple dietary and lifestyle changes. Try a variety of methods to see which ones work best for you. Eat foods with a lot of vitamin C, and try to eat micrograms of folic acid a day.
At its best, sex should be something that we're always working to get better at — and to make better for our partners. Some of those improvements are easy to make, like exploring new sex positions that help get her off faster, or make you last longer, or that can easily be executed in a public space or tight quarters, like the backseat of a car. Enhancing your already stellar sex life can also be as simple as adding a new toy or lube into the mix — and figuring out exactly how you both like to use it becomes part of the fun.
Posted 0 comments. The topic of how to produce more semen is often too taboo for people to discuss even with their best friends or partner, yet many men do wish to produce more sperm, either because they are planning out parenthood, or simply to impress their partner. How much more personal can you get than talking about how to increase sperm volume?
Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg  during sexual reproduction. Competition can occur when females have multiple potential mating partners. Greater choice and variety of mates increases a female's chance to produce more viable offspring. Sperm competition is an evolutionary pressure on males, and has led to the development of adaptations to increase males' chance of reproductive success.
Sperm that live for longer before fertilising an egg produce healthier offspring -- according to new research from the University of East Anglia and Uppsala University in Sweden. New research published today shows that longer-lived sperm in an ejaculate of a zebrafish male produce offspring with longer and healthier lifespans -- who in turn produce more and healthier offspring themselves -- than the shorter-lived sperm in the same ejaculate. The findings may have important implications for human reproduction and fertility, particularly in the context of assisted fertilisation technologies. Lead researcher Dr Simone Immler, from UEA's School of Biological Sciences, said: "One male produces thousands to millions of sperm in a single ejaculate but only very few end up fertilizing an egg.