Researchers have pinpointed the molecular “switch” that supercharges sperm for their final sprint to an egg. The work is a breakthrough that could reshape infertility treatments and pave the way for safe, nonhormonal male contraceptives. “Sperm metabolism is special since it’s only focused on generating more energy to achieve a single goal: fertilization,” says Melanie [.] The post How sperm kick into ‘overdrive’ for their final sprint appeared first on Knowridge Science Report.