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Human health and medicine

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Shavasana (शवासन)

Shavasana (शवासन, śavāsana), or Corpse Pose, also called Mrtasana, is yoga's supine relaxation posture held 3–10 minutes at the end of practice; documented in 13th-century haṭhayoga texts and shown to lower heart rate and blood pressure.

Shave biopsy

A shave biopsy is a skin biopsy technique that slices a thin layer off a lesion with a blade, the most commonly used skin biopsy method.

Shaving

Shaving: cutting body hair at the skin surface with a razor. Covers technique, the regrowth myth, pseudofolliculitis barbae, and razor history from Egyptian and Bronze Age razors to Gillette's safety razor and electric shavers.

Shawn M Bediako

Shawn Moyo Bediako is an American community and health psychologist known for research on stigma, discrimination, and sickle cell disease, and a professor at UMBC.

Shear wave imaging

Shear wave imaging is a quantitative ultrasound elastography method that measures how fast shear waves travel through tissue to estimate stiffness, used mainly to stage liver fibrosis without biopsy.

Sheehan's syndrome

Sheehan's syndrome (postpartum pituitary necrosis): hypopituitarism from ischemic pituitary injury after severe postpartum hemorrhage; delayed diagnosis 7–19 years, treated with lifelong hormone replacement.

Shegan Mahuang Tang

射干麻黄汤 (Shegan Mahuang Decoction), a nine-herb classical Chinese medicine formula from the Jin Gui Yao Lue for cough with phlegm rattling in the throat; used for asthma and bronchitis in China and Japan, distinguished from Xiao Qinglong Tang by weaker exterior release and stronger phlegm descent.

Sheila A. Ryan

Sheila A. Ryan is an American nurse scholar and emeritus professor at the University of Nebraska Medical Center who served as dean at Creighton University and the University of Rochester.

Sheldon Greenfield

Sheldon Greenfield (died 2025) was an American general internist and health services researcher at UC Irvine who co-led the Medical Outcomes Study and was elected to the National Academy of Medicine in 1996.

Sheldon S. King

Sheldon S. King is an American health care executive who led UC San Diego Hospitals, Stanford University Medical Center, and Cedars-Sinai, and belongs to the National Academy of Medicine.

Sheldon-Hall syndrome

Sheldon-Hall syndrome, or distal arthrogryposis type 2B (DA2B, MIM 601680), is a rare autosomal dominant congenital contracture disorder of the distal limb joints with mild triangular-face features, caused by MYH3, TNNI2, TNNT3, or TPM2 mutations, distinct from Freeman-Burian syndrome.

Shenda M. Baker

Shenda M. Baker is an American chemist who was a professor at Harvey Mudd College from 1991 to 2014 and co-founded Synedgen, a glycopolymer therapeutics company.

Shenge Bushen capsules

Shenge Bushen capsules (参葛补肾胶囊) are a Category 1.1 innovative traditional Chinese medicine approved by China's NMPA in 2022 for mild to moderate depression with Qi-Yin and kidney Qi deficiency, made from Radix Pseudostellariae, kudzu root, and Epimedium.

Shengjiang San

升降散 (Shengjiang San) is a classical Chinese medicine formula of white silkworm, cicada slough, turmeric, and rhubarb from Yang Lishan's 1784 Shanghan Wenyi Tiaobian, used to clear constrained heat in warm disease and now studied for anti-inflammatory and immune effects.

Shengjiang Xiexin Decoction

生姜泻心汤 (Shengjiang Xiexin decoction), a classical Chinese formula from Zhang Ji's Treatise on Cold Damage, article 157; eight herbs led by four liang fresh ginger; treats pi below the heart with fetid belching, water qi, borborygmus, and diarrhea; listed in China's 2023 classic formula catalog.

Shengma Gegen Tang

Shengma Gegen Tang (升麻葛根汤, Shoma-kakkon-to) is a four-herb classic Chinese formula (Cimicifuga, kudzu, peony, licorice) first recorded in the Song Taiping Huimin Heji Jufang, used to release the exterior and outthrust rashes in measles and epidemic disease.

Shengxian Decoction

升陷汤 (Shengxian Decoction), also called 升阳举陷汤, is a five-herb classic TCM formula by Zhang Xichun (《医学衷中参西录》, 1909) for the sunken pectoral qi syndrome; astragalus 18 g, anemarrhena, bupleurum, platycodon, cimicifuga; a first-batch national classic formula used for heart failure, COPD, and fatigue.

Shengyu Tang

圣愈汤 (Shengyu decoction), a classic Chinese medicine qi-and-blood tonic from Li Dongyuan's Lanshi Micang: Four-Substance Decoction plus ginseng and astragalus, for dual qi-blood deficiency and excessive bleeding.

Shentong Zhuyu Tang

身痛逐瘀汤 (Shentong Zhuyu Decoction), a 12-herb classical Chinese medicine formula from Wang Qingren's 1830 Yilin Gaicuo, for painful obstruction with blood stasis; one of the five Zhuyu decoctions, now on China's official classical formula catalogue.

Shenyu Ningshen Tablets

Shenyu Ningshen Tablets (参郁宁神片) is a class 1.1 innovative Chinese patent medicine approved in China in 2023 for mild-to-moderate depression with qi and yin deficiency.

Shepard tone

Shepard tone: auditory illusion by Roger Shepard (1964) of octave-spaced components under a fixed bell-shaped envelope, heard as endlessly rising or falling pitch; basis of the Risset glissando, tritone paradox, and film and game sound design.

Sherri Tenpenny

Sherri Jane Tenpenny, Ohio osteopathic physician and anti-vaccine activist, author of Saying No to Vaccines, Disinformation Dozen member, known for 2021 magnetism testimony and 2023 license suspension.

SHHS study

Sleep Heart Health Study (SHHS): NHLBI multi-center prospective cohort (1995–1998 enrollment, 6,441 adults 40+) using in-home polysomnography in existing cohorts to test sleep-disordered breathing's cardiovascular consequences.

Shiatsu

Shiatsu (指圧, "finger pressure") is a Japanese manual therapy in which practitioners apply sustained pressure and stretches to a clothed body; its clinical evidence remains limited.

Shilajit (शिलाजीत)

Shilajit (शिलाजीत), also called mineral pitch or mumie, is a Himalayan rock resin used in Ayurveda as a rasayana rejuvenator; rich in fulvic acid, it has small clinical trials on testosterone, bone density, and fatigue, plus heavy-metal contamination concerns.

Shin splints

Shin splints, or medial tibial stress syndrome (MTSS), is an overuse injury causing exercise-induced pain along the posteromedial tibial border, common in runners and military recruits, treated with rest and prevented by neuromuscular training and overpronation insoles.

SHINE trial (NCT01824940)

The SHINE trial (Sanitation Hygiene Infant Nutrition Efficacy) was a cluster-randomized trial in rural Zimbabwe testing whether water, sanitation, hygiene, and infant feeding interventions improved child growth.

Shipi San

实脾散 (Shipi San, also 实脾饮), a classical Chinese medicine formula from Yan Yonghe's Jisheng Fang (1253); warms yang, boosts the spleen, moves qi, drains water; treats spleen-kidney yang deficiency yin-water edema; derived from Zhenwu Tang.

Shirley Ardell Mason

Shirley Ardell Mason, aka Sybil, 1923-1998, Minnesota-born artist and psychiatric patient of Cornelia Wilbur, subject of the 1973 book Sybil; her 16-personality case was later shown to be largely fabricated.

Shmuel Penchas

Shmuel Penchas is a Jerusalem physician who ran the Hadassah Medical Organization for eighteen years and argued that health care reform may be logically impossible.