Ключевые слова: adult, age, anatomy, andropause, balance, biochemistry, biology, body, chart, concept, decline, decrease, design, diagram, erection, fertility, flat, graphic, health, high, hormonal, hormone, human, illustration, increase, infographic, information, isolated, level, libido, life, loss, low, male, man, medical, men, people, physiology, poster, science, sex, sexual, silhouette, stage, testosteron, testosterone, testosterone level, therapy,