The following is an overview of the male reproductive anatomy: Scrotum. The bag of skin that holds and helps to protect the testicles. The testicles make sperm and, to do this, the temperature of the ...

Youth make up more than half of the global population and are a powerful engine for innovation, social change and sustainable development. Yet many still face persistent barriers that hold them back ...

The endocrine system is a complex network of glands and organs. It uses hormones to control and coordinate your body's metabolism, energy level, reproduction, growth and development, and response to ...