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Background A number of studies have evaluated the association between cognitive function, pain, and physical activity. To our knowledge, however, no previous studies have evaluated these factors at the population level. Aims To evaluate the association between cognitive function in the elderly with pain, physical activity, and the interaction between these variables. Estimates are generated for the United States population. Methods We made use of the NHANES database (1999–2002), making adjustments so that our results represent the United States population. Cognitive function was evaluated through the Digit Symbol Substitution Test. Our main predictors were (1) pain, defined as soreness of either the shoulder, neck, lower back and joint, or a severe headache (2) physical activity, measured as the performance while performing tasks at home, physical activity intensity, walking, bicycle riding, and muscle strengthening. Results Most individual pain sites were not significantly associated with cognitive function, while all physical activity factors were associated with an increase in cognitive function. When evaluating the sample subset of those with cognitive scores lower than the median, a combination of more pain and less physical activity was consistently associated with lower cognitive scores when compared to those performing more physical activity with or without pain. When evaluating individuals with cognitive scores above the median, a similar association pattern was perceived. Conclusions Among the population of individuals above the age of 60, higher cognitive levels are associated with more physical activity and less with pain, although both factors might impact cognition. Public policy resources should be commensurate with these findings when targeting cognitive function among the aging population.

Background: The global incidence of impaired cognition increases with the overall aging of the population. Regarding prophylactic measures, it is unclear whether engaging in cognitively-stimulating activities can decrease the risk of cognitive impairment. Objective: To determine the association between Need for Cognition and cognitive ability within a representative mirroring sample of the elderly population in the United States. Methods: We evaluated the association between Need for Cognition (measured through cognitive effort and enjoyment scores) as a predictor and neurocognitive scores (number series, concept formation, calculations, word attack, picture vocabulary, auditory working memory and similarities) as outcomes using the CogUSA dataset. Results: A total of 1,174 participants of at least 64 years of age were part of this analysis. Participants attending college (49.4%) presented higher cognitive effort and enjoyment scores. The findings demonstrate a two-factor structure, the first related to neurocognitive tests and the second related to need for cognition, with good factor loadings. Conclusion: Need for Cognition and neurocognitive ability is strongly correlated and could perhaps be constructed as a single factor. Future research should focus on assessing the relationship between the Need for Cognition and cognitive function in the context of a multitude of other factors, thus determining the contribution of individual factors under different circumstances.

In 1992, the defmition of erectile dysfunction (ED) replaced the old term of impotence that had been used for many centuries, in order to avoid the general confusion existing until today in this field. In the past, the origin of impotence had been attributed to different causes such as psychological diseases, or witches and demons. In 1764, Fusanacci described impotence that can occur in the male as well as in the female, as a defect in reproduction. The main causes responsible for impotence were identified as inability to achieve erection, a very fluid seminal ejaculation, a defective organ, dryness of testicles, and lack of copulative power after many sexual intercourses with healthy women. Some decades later in 1847, Beatty affirmed that one of the most remarkable changes that can be observed in the passage from childhood to maturity is the development of the sexual organs, followed by the appearanee of new sensations. He dis1inguished impotenee that oeeurs only in men from sterility that for him affeets women, and divided the eauses of impotenee into 3 classes: organie, functional and moral (today defmed as psyehologieal). For Beatty, the . progress of knowledge had taken away magie and soreery from the human mind and now it was widespread only ," among the lowest and most ignorant classes of humble people. In this way, he shows the evolution ofmedieal scienee d~ in XIX eentury in aceepting only the rational explanation of the human diseases.

CKD is utilized as a paradigm, a chronic disease which allows decades of life conquered with great effort through a machine, a life with many losses and many dependencies. We must understand the patient's needs, which are not related to availability of drugs and machines and hospitals. We cannot provide good medical care with the limited amount of national product devoted to health care. Society is much older than ever before. We need a new cadre of economists working on health care with vision and ability, keeping in mind that there are no resources and there are no expenses which can be cut in medical care nowadays. We have to switch from curative medicine towards prevention, by implementing clinical research, bearing in mind that in the Western world, democracy was granted through the correct allocation of resources. The search for happiness and good quality of life are old concepts born in the Mediterranean area over the centuries, starting with Hesiod and Homer, and sleep and dreams were being investigated centuries before Freud was born.

Sleep disorders are among the factors that can reduce the quality of life in patients with chronic kidney disease. Chronic kidney disease patients could benefit from an accurate evaluation and treatment of insomnia because this sleep disorder is associated with a high persistence-relapse rate, poor physical health, and mental disease (anxiety, depression) both in terms of comorbidity and antecedent. A multilayer evaluation of insomnia is possible because of valid and reliable instruments (both objective and subjective). Furthermore, a rational etiologic model of insomnia allows better understanding and treatment as a result of effective cognitive-behavioral techniques.

Gabriel Zerbi was born in Verona in 1445 and died in Dalmatia in 1505. He was professor of philosophy in Padua at the age of 22, and moved to Bologna where he became professor of medicine and philosophy. In Rome at the time of Sixtus V and Innocentius VIII, he was archiater and professor of medicine. He completed his academic career in Padua where he worked from 1494 to 1505 with a salary of 600 florins a month. A man of vast culture, a philosopher, physician and professor of medicine, he wrote many books: (1) Questiones Metaphysicae; (2) Gerentocomia; (3) De Cautelis Medicorum; (4) Liber anatomiae corporis humani et singulorum membrorum illius; (5) De anatomia infantiis et porci ex traditione Cophonis, and (6) Libellus de preservatione corporum a passione calculosa. His contribution to anatomy was superb. Through him the discipline became the basis of modern medicine. The core of this article deals with some passages of Zerbi’s chapters on the anatomy of the kidneys and bladder.