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Nahua peoples in central Mexico in the late postclassic period (1200–1521) and the early colonial period (1521–1650) had a sophisticated and complex system of healing known as tiçiyotl. Titiçih, the practitioners of tiçiyotl, were men and women that had specialized knowledge of rocks, plants, minerals, and animals. They used these materials to treat diseases and injuries. Furthermore, titiçih used tlapohualiztli (the interpretation of objects to obtain information from nonhuman forces) to ascertain the source of a person’s ailment. For this purpose, male and female titiçih interpreted cords, water, tossed corn kernels, and they measured body parts. Titiçih could also ingest entheogenic substances (materials that released the divinity within itself) to communicate with nonhuman forces and thus diagnose and prognosticate a patient’s condition. Once a tiçitl obtained the necessary information to understand his or her patient’s affliction, he or she created and provided the necessary pahtli (a concoction used to treat an injury, illness, or condition) for the infirm person. Finally, titiçih performed important ritual offerings before, during, and after healing that insured the compliance of nonhuman forces to restore and maintain their patients’ health.

Bioethical discourse in Western and Islamic societies needs to be viewed against the background of their different historical perspectives and the role secularism has played in their respective development. While the Islamic experience generally saw science and technology evolving out of the Islamic way of life with medical ethics embedded in, and not hindered by, the injunctions of Islamic law, the Western (European) experience emphasizes the a priori need for secularization so as to initiate scientific development. Secularism therefore seems ingrained in Western approaches to science. Against this background, Western bioethics tends to insist on a secular imprint on bioethics. Bioethicists in Muslim-majority countries and in Muslim-minority communities elsewhere work with different historical and cultural experiences. Islam and its sources are still considered to be an important reference framework in Muslim countries and among Muslim populations. The communication of bioethical standards to various recipients therefore requires Islamic justification for legitimacy and acceptance.

Cannabis and tobacco have longstanding roles in African societies. Despite botanical and pharmacological dissimilarities, it is worthwhile to consider tobacco and cannabis together because they have been for centuries the most commonly and widely smoked drug plants. Cannabis, the source of marijuana and hashish, was introduced to eastern Africa from southern Asia, and dispersed widely within Africa mostly after 1500. In sub-Saharan Africa, cannabis was taken into ethnobotanies that included pipe smoking, a practice invented in Africa; in Asia, it had been consumed orally. Smoking significantly changes the drug pharmacologically, and the African innovation of smoking cannabis initiated the now-global practice. Africans developed diverse cultures of cannabis use, including Central African practices that circulated widely in the Atlantic world via slave trading. Tobacco was introduced to Africa from the Americas in the late 1500s. It gained rapid, widespread popularity, and Africans developed distinctive modes of tobacco production and use. Primary sources on these plants are predominantly from European observers, which limits historical knowledge because Europeans strongly favored tobacco and were mostly ignorant or disdainful of African cannabis uses. Both plants have for centuries been important subsistence crops. Tobacco was traded across the continent beginning in the 1600s; cannabis was less valuable but widely exchanged by the same century, and probably earlier. Both plants became cash crops under colonial regimes. Tobacco helped sustain mercantilist and slave-trade economies, became a focus of colonial and postcolonial economic development efforts, and remains economically important. Cannabis was outlawed across most of the continent by 1920. Africans resisted its prohibition, and cannabis production remains economically significant despite its continued illegality.

Mary Antoinette Cannon (1884–1962) was a social worker and educator who helped develop medical social work. She created courses in psychiatry and medicine in schools of social work and helped establish the Social Services Employees Union.

The history of Buddhism in China is deeply connected with healing. Some of the scriptures that were translated into Chinese discuss Indic conceptions of the body as an amalgamation of elements, and causes of illness in the tridoṣa, that is pathogenic body fluids and internal winds. Others discuss materia medica, and monastic rules on healing and hygiene in the monastery. Yet others set forth the ritual worship of the Medicine Buddha (Skt. Bhaiṣajyaguru; Ch. Yaoshi fo 藥師佛), the Bodhisattva Avalokiteśvara (Guanyin pusa 觀音菩薩), and other deities that promise healing. Apart from the translated scriptures, there is a huge body of indigenous works that synthesized the wealth of information on Indic healing which arrived in China between the 2nd and 10th centuries ce. Foremost among those are Yijing’s 義淨 (635–713) account of Indian monastic practices, Daoxuan’s 道宣 (596–667) vinaya commentary, and Daoshi’s 道世 (?–683) encyclopedia chapter on illness. Chinese compositions, such as Zhiyi’s 智顗 (538–597) treatises on meditation, and Huizhao’s 慧皎 (497–554) hagiographies bear witness to the hybridity to which the reception of Indic ideas in China gave rise. With the widening reach of Buddhism into every layer of Chinese society during the Sui and Tang dynasties, eminent Chinese physicians, such as Tao Hongjing 陶弘景 (452–536), Chao Yuanfang 巢元方 (550–630), Wang Tao 王焘 (670–755), and Sun Simiao 孫思邈 (581–682) also began to incorporate Buddhist ideas into their medical treatises. Chinese Buddhist monasteries introduced hospital services to China, and certain lineages of monks continued to provide medical care to the laity in late imperial China. Their healing was based on Chinese medical theories, however, and there is no evidence that they persisted in applying Indic medical ideas.

Unraveling the connections between meteorology, climate, and health—all broadly defined—is an endeavor that cuts across an astonishing array of times, places, and peoples. How societies pursue and interpret these connections is deeply tied to sociocultural, environmental, and political context. In the United States, meteorological beliefs rested on shared assumptions rooted in ancient traditions that linked prevailing environmental and climatic conditions with human health. By the 17th century, the steadfast collection of meteorological phenomena in weather journals was tethered to medical knowledge as well as the pursuit of agricultural, business, and shipping ventures. Environmental conditions were routinely theorized as causes for epidemics and individual sickness (or cure). As meteorology changed from a practice of data collection to a science over the 18th and 19th centuries, its medical arm branched into the interlocking fields of medical meteorology, medical climatology, and medical topography. However, even with the rise of new meteorological technologies and methods, older ways of knowing the weather persisted alongside formal medical theories of health and place, and tacit, embodied knowledge was never fully supplanted by instrumental data collection. The science of meteorology also grew into being as a tool of empire. Imperial states established networks of meteorological stations to collect weather data to further colonial ambitions and foster politically charged geographic imaginaries of colonized places and peoples. But theorizing the relationship between climate and health was not restricted to white men of science. Black intellectuals and subaltern peoples held radically different cosmologies of climate and challenged prevailing essentialist theories of climate and health throughout the 19th and 20th centuries. In the 20th century, scientists situated changing climates as a key dimension for disease patterns and demographic transition more broadly. As historians make use of the increasingly sophisticated methods of historical climatology, past climate reconstruction has sparked new questions on how environmental conditions have both enabled and constrained human action during climate—and political, infrastructural—disasters. New interdisciplinary approaches to the climate crisis have further offered ways to bridge the disconnect between climate science and medical practice that emerged during the 20th century.

British views of African populations from 1800 to 1970 reflected the larger discourse about Africa in this period. These views shaped how the British state and private groups attempted to measure and influence African population trends. In the precolonial era, travelers painted a picture of an underpopulated continent ravaged by war and slavery. Malthus used these accounts in his depiction of African populations limited by insecurity, low productivity, and primitive customs. Malthus’s view would dominate British ideas of African population into the colonial era. Prior to that, missionary groups and antislavery activists invoked these ideas to justify efforts to change African customs through conversion and free labor. In the colonial era, the belief in underpopulation rationalized state interventions in African societies through forced labor and public health. Colonial regimes attempted to measure and classify their populations to facilitate taxation and administration. These early surveys failed to produce adequate results and estimates of African populations remained unreliable. Despite the absence of data, British officials and demographers continued to argue that lack of population represented a fundamental obstacle to development. Efforts to address this concern made little headway before the late 1930s, when the international criticism of empire forced British officials to embrace a more interventionist colonial state. Beginning in the late 1930s, British officials and demographers warned of signs of overpopulation, even though reliable census data remained elusive. As part of the postwar drive for development, officials used resettlement programs and agricultural schemes to improve productivity and to address presumed population pressure. In the late colonial era, the British allowed the creation of birth control clinics in African colonies. These private efforts became the basis of an international effort of population control focused on Africa that began in the late 1960s. Since the 1980s, scholars have created alternative explanations of African historical demography, relying on a variety of sources to challenge the existing paradigm.

Patient adherence (sometimes referred to as patient compliance) is the extent to which a patient’s health behavior corresponds with the agreed-upon recommendations of the healthcare provider. The term patient compliance is generally synonymous with adherence but suggests that the patient played a more passive role in the healthcare professional’s prescription of treatment, whereas the term adherence suggests that the patient and healthcare professional have come to an agreement on the regimen through a collaborative, shared decision-making process. Another term related to the concept of adherence is persistence (i.e., taking a medication for the recommended duration). Some patients are purposefully or intentionally nonadherent, whereas others are unintentionally nonadherent due to forgetfulness or poor understanding of the regimen. Patients may be intentionally nonadherent because of a belief that the costs of the regimen outweigh the benefits, for example. Nonadherence behaviors in medication taking include never filling a prescription, taking too much or too little medication, or taking a medication at incorrect time intervals. Patient adherence is relevant not only in medication-taking behaviors, but also in health behaviors such as following a specific dietary regimen, maintaining an exercise program, attending follow-up appointments, getting recommended screenings or immunizations, and smoking cessation, among others. A number of factors predict patient adherence to treatment, but the relationship between provider-patient communication and adherence to treatment will be stressed. Focusing on recent research, the article examines the concept of patient adherence, describes how provider-patient communication can enhance patient adherence, explains what elements of communication are relevant for adherence, and illustrates how interventions to improve communication can improve adherence.

Imagery, which can be used by anyone, is appealing to performers because it is executed individually and can be performed at anytime and anywhere. The breadth of the application of imagery is far reaching. Briefly, imagery is creating or recreating experiences in one’s mind. From the early theories of imagery (e.g., psychoneuromuscular) to the more recent imagery models (e.g., PETTLEP), understanding the way in which imagery works is essential to furthering our knowledge and developing strong research and intervention programs aimed at enhanced performance. The measurement of imagery ability and frequency provides a way of monitoring the progression of imagery use and imagery ability. Despite the individual differences known to impact imagery use (e.g., type of task, imagery perspective, imagery speed), imagery remains a key psychological skill integral to a performer’s success.

Continuous technical developments in medicine prompt different actors to think about morality, biology, and the legitimacy of scientific progress in different societies. In Muslim-majority countries, religious institutions provide a trusted source of guidance on bioethical issues for believers. Meanwhile, in Egypt, the Napoleonic colonial legacy has granted more authority to the state in ruling over the individual’s body. There are increasing demands for pluralism within Muslim-majority countries and the notion of pan-Muslim events as important venues to discuss pressing bioethics issues, such as contraception, abortion, and population control.

During the 518 years of Korea’s Chosŏn dynasty (1392–1910), many things changed and many things stayed the same. After the Yi family established the Chosŏn dynasty, Confucianism became the dominant philosophy. Although Confucianism’s grip on Chosŏn weakened somewhat at the end of the 19th century, it nevertheless continued to provide the basic framework for how government officials and most of the educated elite conceptualized ethics, religion, nature, and technology. This changed when the Chosŏn dynasty was absorbed into the Japanese empire in 1910. Chosŏn-era science, technology, and religion operated within a Confucian framework. This affected astronomical, geographical, mathematical, and medicinal thought and practice. It also affected the role of technology in Chosŏn life and society. Moreover, when Buddhism, folk religion and, from the end of the 18th century even Christianity, were practiced in Korea, it was necessary to maneuver within constraints imposed by a Confucian state and society. Korea’s Confucianism was imported from China. Koreans, however “Koreanized” what they adopted from China to make it their own. When dealing with religion, Chosŏn-era Koreans adopted a much harsher attitude toward non-Confucian religions. When dealing with science and technology, Koreans sometimes made improvements on Chinese models. For example, in the 15th century, Koreans built astronomical instruments that were better than those they had learned about from Chinese astronomers. And, in the 17th century, Koreans produced the most comprehensive encyclopedia of traditional East Asian medicine of pre-modern times. However, none of those changes threatened the hegemony of Confucianism. Chosŏn Korea remained Confucian in its science, technology, and religiosity for over five centuries.