Browse by symptom

Research areas

I.

Species records

Species record

Oyster Mushroom

Pleurotus ostreatus

Studies
1,947
Avg relevance
53
Latest
2026
Open record

Species record

Reishi · Lingzhi

Ganoderma lucidum

Studies
1,830
Avg relevance
60
Latest
2026
Open record

Species record

Turkey Tail · Yun Zhi

Trametes versicolor

Studies
1,828
Avg relevance
41
Latest
2026
Open record

Species record

Shiitake · Hua Gu

Lentinula edodes

Studies
1,766
Avg relevance
60
Latest
2026
Open record

Species record

Cordyceps · Scarlet Club

Cordyceps militaris

Studies
1,635
Avg relevance
67
Latest
2026
Open record

Species record

Cordyceps · Caterpillar Fungus

Ophiocordyceps sinensis

Studies
1,576
Avg relevance
59
Latest
2026
Open record

Species record

Almond Mushroom · ABM

Agaricus blazei

Studies
1,441
Avg relevance
54
Latest
2026
Open record

Species record

Enoki · Winter Mushroom

Flammulina velutipes

Studies
1,403
Avg relevance
47
Latest
2026
Open record

Species record

King Oyster · Eryngii

Pleurotus eryngii

Studies
1,278
Avg relevance
60
Latest
2026
Open record

Species record

Maitake · Hen of the Woods

Grifola frondosa

Studies
1,276
Avg relevance
48
Latest
2026
Open record

Species record

Snow Fungus · Silver Ear

Tremella fuciformis

Studies
1,052
Avg relevance
29
Latest
2026
Open record

Species record

Lion's Mane · Yamabushitake

Hericium erinaceus

Studies
862
Avg relevance
67
Latest
2026
Open record

Species record

Chaga

Inonotus obliquus

Studies
738
Avg relevance
65
Latest
2026
Open record

Species record

Mesima · Sanghwang

Phellinus linteus

Studies
722
Avg relevance
58
Latest
2026
Open record

Species record

Niu-Chang-Chih

Antrodia camphorata

Studies
496
Avg relevance
63
Latest
2026
Open record

Species record

Nameko · Nametake

Pholiota microspora

Studies
421
Avg relevance
29
Latest
2026
Open record

Species record

Yellow Morel

Morchella esculenta

Studies
392
Avg relevance
42
Latest
2026
Open record

Species record

Zhu Ling · Umbrella Polypore

Polyporus umbellatus

Studies
263
Avg relevance
55
Latest
2026
Open record

Species record

Wood Ear · Kikurage

Auricularia auricula-judae

Studies
254
Avg relevance
51
Latest
2026
Open record

Species record

Agarikon · Quinine Conk

Fomitopsis officinalis

Studies
47
Avg relevance
55
Latest
2026
Open record

Articles

17,669 results

Showing 17,401–17,450 of 17,669

Low relevance

Maitake · 1986 · Journal Article · Chemical and Pharmaceutical Bulletin

Carbon-13 Nuclear Magnetic Resonance Spectroscopy of Various Yeasts as Aqueous Suspensions

Metadata-grounded summary: This journal article indexes research on Grifola frondosa in Chemical and Pharmaceutical Bulletin in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

Oyster Mushroom · 1986 · Journal Article · NIPPON SHOKUHIN KOGYO GAKKAISHI

Changes in the Contents of Carbohydrates and Organic Acids in Fruit-Bodies of Shiitake-Mushroom [Lentinus edodes (Berk.) Sirg.] during Development and Post-Harvest Storage

Metadata-grounded summary: This journal article indexes research on Pleurotus ostreatus in NIPPON SHOKUHIN KOGYO GAKKAISHI in 1986. MycoData maps the paper to metabolic health based on its title, species context, article metadata, and study classification..

Metabolic health
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

Comments on Dr. Kobayashi's Paper

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

Comments on Dr. Tono's Paper

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Reishi · 1986 · Journal Article · Agricultural and Biological Chemistry

Comparison of Structure and Antitumor Activity of Polysaccharides Isolated from Fukurotake, the Fruiting Body of Volvariella volvacea

Metadata-grounded summary: This journal article indexes research on Ganoderma lucidum in Agricultural and Biological Chemistry in 1986. MycoData maps the paper to oncology, immune support based on its title, species context, article metadata, and study classification..

OncologyImmune support
Low relevance

Cordyceps · 1986 · Journal Article · Japanese Journal of Grassland Science

Cultivation and Utilization of Kudzu-Vine (Pueraria lobata Ohwi): Adaptability, cultivation method, cutting frequency, yield, grazing and feeding value

Metadata-grounded summary: This journal article indexes research on Ophiocordyceps sinensis in Japanese Journal of Grassland Science in 1986. MycoData maps the paper to energy & fatigue, respiratory based on its title, species context, article metadata, and study classification..

Energy & fatigueRespiratory
Low relevance

Oyster Mushroom · 1986 · Journal Article · NIPPON SHOKUHIN KOGYO GAKKAISHI

Decolorizing Activity and Sugar Assimilation of Basidiomycetesfor Polyvinylpolypyrrolidone-treated Molasses

Metadata-grounded summary: This journal article indexes research on Pleurotus ostreatus in NIPPON SHOKUHIN KOGYO GAKKAISHI in 1986. MycoData maps the paper to metabolic health based on its title, species context, article metadata, and study classification..

Metabolic health
Low relevance

King Oyster · 1986 · Journal Article · NIPPON SUISAN GAKKAISHI

Dimethyl Sulfide and Dimethyl-β-propiothetin in Shellfish

Metadata-grounded summary: This journal article indexes research on Pleurotus eryngii in NIPPON SUISAN GAKKAISHI in 1986. MycoData maps the paper to gut & microbiome based on its title, species context, article metadata, and study classification..

Gut & microbiome
Low relevance

Maitake · 1986 · Journal Article · Chemical and Pharmaceutical Bulletin

Effect of Activation or Blockade of the Phagocytic System on the Antitumor Activity of Grifolan

Metadata-grounded summary: This journal article indexes research on Grifola frondosa in Chemical and Pharmaceutical Bulletin in 1986. MycoData maps the paper to oncology based on its title, species context, article metadata, and study classification..

Oncology
Low relevance

Maitake · 1986 · Journal Article · Chemical and Pharmaceutical Bulletin

Effect of Glucans on the Antitumor Activity of Grifolan

Metadata-grounded summary: This journal article indexes research on Grifola frondosa in Chemical and Pharmaceutical Bulletin in 1986. MycoData maps the paper to oncology based on its title, species context, article metadata, and study classification..

Oncology
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

Effects of CSF and perilymphatic pressure on cochlear function

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

Effects of Osmotic Diuretics on Inner Ear Fluid Electrolytes

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Yellow Morel · 1986 · Journal Article · Journal of the Oceanographical Society of Japan

Estimation of Chlorophyll Concentration from the Specific Fluorescence at 685nm in the Upward Irradiance just below the Sea Surface

Metadata-grounded summary: This journal article indexes research on Morchella esculenta in Journal of the Oceanographical Society of Japan in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

Snow Fungus · 1986 · Journal Article · Nihon Hotetsu Shika Gakkai Zasshi

Experimental Studies of the Effect of Metal Core (Silver Alloy) on the Gingival Tissue

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Nihon Hotetsu Shika Gakkai Zasshi in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Cordyceps · 1986 · Journal Article · Agricultural and Biological Chemistry

Extracellular Polysaccharide Produced by a Virulent Strain (U-7) of Pseudomonas solanacearum

Metadata-grounded summary: This journal article indexes research on Ophiocordyceps sinensis in Agricultural and Biological Chemistry in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

Snow Fungus · 1986 · Journal Article · Journal of the Mammalogical Society of Japan

Food Habits and Interspecific Relationships in Two Red-backed Voles, Clethrionomys in Hokkaido

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Journal of the Mammalogical Society of Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Turkey Tail · 1986 · Journal Article · Japanese Journal of Tropical Medicine and Hygiene

General presentation

Metadata-grounded summary: This journal article indexes research on Trametes versicolor in Japanese Journal of Tropical Medicine and Hygiene in 1986. MycoData maps the paper to oncology, immune support based on its title, species context, article metadata, and study classification..

OncologyImmune support
Low relevance

Snow Fungus · 1986 · Journal Article · Mining Geology

Gold and Silver Ores from the Geumwang Mine in South Korea and Their Mineralization

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Mining Geology in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · Japanese Journal of Phytopathology

Identification and Pathogenicity of Three Species of Pythium Newly Isolated from Diseased Wheat and Barley Just After Thawing in Japan

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Japanese Journal of Phytopathology in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · The Journal of Biochemistry

Isolation of a 5, 300-Dalton Peptide Containing a Pyridoxal Phosphate Binding Site from the 38, 000-Dalton Domain of Band 3 of Human Erythrocyte Membranes

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in The Journal of Biochemistry in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Reishi · 1986 · Journal Article · Agricultural and Biological Chemistry

Kinetic Studies on S-PI(Pepstatin Ac)-insensitive Acid Proteinases of Scytalidium lignicolum ATCC 24568. Evidence Identifying Them with a Carboxyl Proteinase Group

Metadata-grounded summary: This journal article indexes research on Ganoderma lucidum in Agricultural and Biological Chemistry in 1986. MycoData maps the paper to oncology, immune support, metabolic health, liver support based on its title, species context, article metadata, and study classification..

OncologyImmune supportMetabolic healthLiver support
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

Localization of Ouabain Binding Sites in the Cochlea

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · Mining Geology

Magnetic-Gravity Models for the Au-Ag-Mineralized Hokusatsu District of Southern Kyushu, Japan

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Mining Geology in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · The Journal of Biochemistry

Modulation by Phospholipids of the Activity of Monoamine Oxidase Purified from Pig Liver

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in The Journal of Biochemistry in 1986. MycoData maps the paper to liver support based on its title, species context, article metadata, and study classification..

Liver support
Low relevance

Snow Fungus · 1986 · Journal Article · Japanese Journal of Phytopathology

Occurrence of Pythium Snow Rot Caused by Pythium okanoganense Lipps in Wheat and Barley in Japan

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Japanese Journal of Phytopathology in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Cordyceps · 1986 · Journal Article · Applied Entomology and Zoology

Pathogenicity and Sporulation of Entomophaga maimaiga HUMBER, SHIMAZU, SOPER and HAJEK (Entomophthorales: Entomophthoraceae) on Larvae of the Gypsy Moth, Lymantria dispar L. (Lepidoptera: Lymantriidae)

Metadata-grounded summary: This journal article indexes research on Ophiocordyceps sinensis in Applied Entomology and Zoology in 1986. MycoData maps the paper to energy & fatigue, respiratory based on its title, species context, article metadata, and study classification..

Energy & fatigueRespiratory
Low relevance

Turkey Tail · 1986 · Journal Article · Dokumenteshon kenkyu

Presentation of characters(Present status of the standardization of documentation)

Metadata-grounded summary: This journal article indexes research on Trametes versicolor in Dokumenteshon kenkyu in 1986. MycoData maps the paper to oncology, immune support based on its title, species context, article metadata, and study classification..

OncologyImmune support
Low relevance

Turkey Tail · 1986 · Journal Article · JAPAN TAPPI JOURNAL

Report of The 3rd International Symposium on Wood and Pulping Chemistry

Metadata-grounded summary: This journal article indexes research on Trametes versicolor in JAPAN TAPPI JOURNAL in 1986. MycoData maps the paper to oncology, immune support based on its title, species context, article metadata, and study classification..

OncologyImmune support
Low relevance

Chaga · 1986 · Journal Article · Journal of African Studies

Social Organization and Ritual among the Taita of Kenya

Metadata-grounded summary: This journal article indexes research on Inonotus obliquus in Journal of African Studies in 1986. MycoData maps the paper to metabolic health, skin & hydration based on its title, species context, article metadata, and study classification..

Metabolic healthSkin & hydration
Low relevance

Cordyceps · 1986 · Journal Article · Chemical and Pharmaceutical Bulletin

Structure and Antitumor Activity of a β-1, 3-Glucan Isolated from the Culture Filtrate of Sclerotinia sclerotiorum IFO 9395

Metadata-grounded summary: This journal article indexes research on Ophiocordyceps sinensis in Chemical and Pharmaceutical Bulletin in 1986. MycoData maps the paper to oncology based on its title, species context, article metadata, and study classification..

Oncology
Low relevance

Maitake · 1986 · Journal Article · Medical Entomology and Zoology

Studies on the sphaerocerid flies of synanthropy and hygienic importance in Japan (Diptera): II. Records of the forty species

Metadata-grounded summary: This journal article indexes research on Grifola frondosa in Medical Entomology and Zoology in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

Yellow Morel · 1986 · Journal Article · The Journal of Kansai Medical University

Study of Intrahepatic Cholestasis Induced by Alphanaphthylisothiocyanate in Relation to Liver Asialoglycoprotein-Receptor

Metadata-grounded summary: This journal article indexes research on Morchella esculenta in The Journal of Kansai Medical University in 1986. MycoData maps the paper to liver support based on its title, species context, article metadata, and study classification..

Liver support
Low relevance

Cordyceps · 1986 · Journal Article · JSM Mycotoxins

Survey of the monoamine oxidase inhibitors in Ascomycetes

Metadata-grounded summary: This journal article indexes research on Ophiocordyceps sinensis in JSM Mycotoxins in 1986. MycoData maps the paper to energy & fatigue, respiratory based on its title, species context, article metadata, and study classification..

Energy & fatigueRespiratory
Low relevance

Snow Fungus · 1986 · Journal Article · Journal of Physics of the Earth

T-WAVE DURATION, MAGNITUDES AND SEISMIC MOMENT OF AN EARTHQUAKE-APPLICATION TO TSUNAMI WARNING

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Journal of Physics of the Earth in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Maitake · 1986 · Journal Article · Studies in English Literature

THE "TRAGIC NOTES" AND THE LANGUAGE OF PARADISE LOST, BOOK IX

Metadata-grounded summary: This journal article indexes research on Grifola frondosa in Studies in English Literature in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

THE EFFECT OF THE PERILYMPHATIC IONIC COMPOSITION ON THE N1 RESPONSE OF GUINEA PIG WITH SPECIAL REFERENCE TO CHANGES IN POTASSIUM AND SODIUM IONS

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Reishi · 1986 · Journal Article · Journal of Indian and Buddhist Studies (Indogaku Bukkyogaku Kenkyu)

The Figurine of Maitreya with a Mirror Dated in the 3rd Year of Joo (1224 A. D.) and the Meditation of the Universal Resplendent King with a Hundred Lights

Metadata-grounded summary: This journal article indexes research on Ganoderma lucidum in Journal of Indian and Buddhist Studies (Indogaku Bukkyogaku Kenkyu) in 1986. MycoData maps the paper to oncology, immune support, metabolic health, liver support based on its title, species context, article metadata, and study classification..

OncologyImmune supportMetabolic healthLiver support
Low relevance

Snow Fungus · 1986 · Journal Article · Nippon Jibiinkoka Gakkai Kaiho

THE MORPHOLOGICAL CHANGES OF THE COCHLEA FOLLOWING ELECTRICAL STIMULATION

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Nippon Jibiinkoka Gakkai Kaiho in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

The Morphological Changes of the Inner Ear due to the Direct Current Electrical Stimulation

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · Practica oto-rhino-laryngologica. Suppl.

The Morphololgical Changes of the Vestibular Organ Following Electrical Stimulation

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Practica oto-rhino-laryngologica. Suppl.

Gut & microbiomeSkin & hydration
Low relevance

Enoki · 1986 · Journal Article · JOURNAL OF THE JAPANESE ASSOCIATION OF RURAL MEDICINE

Three Cases of Hypersensitivity Pneumonitis Caused by Inhalation of Spores of “Cortinus Shiitake (Lentinus edodes)” and Results of an Epidemiological Survey on Shiitake-growers

Metadata-grounded summary: This journal article indexes research on Flammulina velutipes in JOURNAL OF THE JAPANESE ASSOCIATION OF RURAL MEDICINE in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

Snow Fungus · 1986 · Journal Article · Ear Research Japan

THREE DIMENSIONAL RECONSTRUCTIONS OF NEURAL TERMINALS ON OUTER HAIR CELLS IN GUINEA PIG (THIRD REPORT)

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Ear Research Japan in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Snow Fungus · 1986 · Journal Article · Mining Geology

Three Epochs of Gold Mineralization in South Korea

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Mining Geology in 1986. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration
Low relevance

Chaga · 1986 · Journal Article · Oyo Buturi

Towards the Possibility of the Crystal Growth Technique with Atomic-Scale Controllability

Metadata-grounded summary: This journal article indexes research on Inonotus obliquus in Oyo Buturi in 1986. MycoData maps the paper to metabolic health, skin & hydration based on its title, species context, article metadata, and study classification..

Metabolic healthSkin & hydration
Low relevance

Turkey Tail · 1986 · Journal Article · Japanese Journal of Grassland Science

Variation of Regrowth after Cutting in Genotypes of Tall Fescue (Festuca arundinacea Schreb.)

Metadata-grounded summary: This journal article indexes research on Trametes versicolor in Japanese Journal of Grassland Science in 1986. MycoData maps the paper to oncology, immune support based on its title, species context, article metadata, and study classification..

OncologyImmune support
Low relevance

Nameko · 1986 · Journal Article · Japanese Journal of Allergology

アレルギー性肺疾患研究の進歩

Metadata-grounded summary: This journal article indexes research on Pholiota microspora in Japanese Journal of Allergology in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

King Oyster · 1986 · Journal Article · The Japanese Journal of Nephrology

一般演題(ポスター)

Metadata-grounded summary: This journal article indexes research on Pleurotus eryngii in The Japanese Journal of Nephrology in 1986. MycoData maps the paper to gut & microbiome based on its title, species context, article metadata, and study classification..

Gut & microbiome
Low relevance

Maitake · 1986 · Journal Article · RADIOISOTOPES

文献抄録

Metadata-grounded summary: This journal article indexes research on Grifola frondosa in RADIOISOTOPES in 1986. MycoData maps the paper to immune support based on its title, species context, article metadata, and study classification..

Immune support
Low relevance

Oyster Mushroom · 1986 · Journal Article · RADIOISOTOPES

文献抄録

Metadata-grounded summary: This journal article indexes research on Pleurotus ostreatus in RADIOISOTOPES in 1986. MycoData maps the paper to metabolic health based on its title, species context, article metadata, and study classification..

Metabolic health
Low relevance

Snow Fungus · 1985 · Journal Article · Nippon Jibiinkoka Gakkai Kaiho

A HISTOGENETIC STUDY OF THE INNER EAR

Metadata-grounded summary: This journal article indexes research on Tremella fuciformis in Nippon Jibiinkoka Gakkai Kaiho in 1985. MycoData maps the paper to gut & microbiome, skin & hydration based on its title, species context, article metadata, and study classification..

Gut & microbiomeSkin & hydration