The older that such fish become, the more mercury they may have absorbed. Anything that eats these fish within the food chain also consumes the higher level of mercury that the fish have accumulated. This process explains why predatory fish such as swordfish and sharks or birds like osprey and eagles have higher
The goal, then, when it comes to having a boy is to increase the likelihood that a Y chromosome sperm reaches the egg first. Many medical researchers believe that Y chromosome sperm are faster swimmers, but that X chromosome sperm have more endurance.
You can enhance male fertility and increase sperm count levels. Though the health of sperm is based on various factors, sperm count is a key part of fertility. The fewer sperm that are produced, the less chance a partnerâs egg will be fertilized.