The human body has a structure, i.e., a certain structure, arrangement of parts. The main parts of the body are: face, neck, trunk, arms and legs.
There are certain proportions between the parts of the body: the length of the forearm is the length of the foot, the length of the nose is the length of the ear, the length of the palm is the length of the face, the length of the foot is the circumference of the fist, people with a small head usually have a long and thin neck, and a large head often rests on a short and massive neck.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.