Endocrine (hormone) system
Hormones have an effect on many parts of the body and control important functions. Among other things, the messenger substances regulate the energy and fluid balance, growth and reproduction.
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Growth in childhood and puberty
Childhood and puberty are phases of growth where our bodies gradually become heavier and taller. This growth begins in the womb and ends after pubert...
What are calories?
Our bodies get most of their energy from three groups of nutrients (known as “macronutrients”): carbohydrates, proteins and fats. They are called mac...
How does the thyroid gland work?
The thyroid gland is a vital hormone-producing gland: It plays a major role in the metabolism, growth and development of the human body. It helps to ...
How does the pituitary gland work?
The pituitary gland regulates various body functions and plays an important role in balancing hormone levels in the body. It is a protrusion at the b...
How does the menstrual cycle work?
During the monthly hormone cycle, the membranes lining the inside of the womb prepare for the possible implantation of a fertilized egg. The membrane...