Hihy Health
Encyclopedia

Air-Conditioning Sickness

#air-conditioning sickness, #air conditioner, #temperature difference, #Legionella, #summer health, #head pain, #fatigue, #indoor ventilation, #stomachache, #tummy ache, #bellyache, #pain inside the abdomen, #headache, #splitting headache, #migraine, #pain at the back of the head, #body shaking, #feeling cold and shivering, #cold sensation, #lack of energy, #listlessness, #persistent tiredness, #loose stools, #watery diarrhea, #frequent bathroom visits, #unable to pass stool, #difficulty having a bowel movement, #hard stools, #hand tremor, #body tremor

Air-conditioning sickness is a general term for the various physical symptoms that appear when air conditioners or other cooling devices are overused and the temperature difference between indoors and outdoors becomes large. It is not an officially defined medical diagnosis, but headache, fatigue, and digestive problems may occur. In most cases, symptoms may improve within a few days if use of cooling devices is reduced. If symptoms are severe or accompanied by a high fever, please consult a medical specialist.

2026-06-26

Athlete's Foot (Tinea)

#athlete's foot, #tinea pedis, #fungal infection, #fungus, #antifungal agents, #onychomycosis, #ringworm

Athlete's foot is a common fungal skin infection. It is a skin condition caused by a fungus called a dermatophyte infecting the foot. It occurs easily in hot, humid environments such as summer and is contagious. It can occur not only on the feet but also in many other areas, including the nails, groin, and scalp.

2026-06-26

Epidemic Keratoconjunctivitis

#epidemic keratoconjunctivitis, #eye infection, #adenovirus, #conjunctivitis, #redness, #eyelid swelling, #contagious, #fever, #having a fever, #high fever, #low-grade fever, #body swelling, #facial swelling, #leg swelling, #swelling in hands and feet

Epidemic keratoconjunctivitis (EKC) is a highly contagious eye infection caused by adenovirus. It occurs most often in summer, and symptoms include eye redness, a foreign body sensation, and eyelid swelling. Personal hygiene is important, and if symptoms appear, please consult an ophthalmologist.

2026-06-26

Facial Flushing

#Facial flushing, #Flushing, #Rosacea, #UV exposure, #Vasodilation, #Face

Facial flushing is a condition in which blood vessels become abnormally widened (dilated), causing the facial skin to redden easily and the redness to persist. Summer heat and strong ultraviolet (UV) light can worsen symptoms. If symptoms persist or worsen, please see a dermatologist.

2026-06-26

Heat Waves and Heart Health

#heat wave, #sudden cardiac death, #heat stroke, #heat-related illness, #heart attack, #angina, #cardiac arrest, #arrhythmia, #hydration, #summer health, #dizziness, #feeling faint, #unsteadiness, #vision going dark, #fainting, #loss of consciousness, #syncope, #breath holding, #difficulty breathing, #shortness of breath, #choking sensation

Extreme heat raises the risk of angina, heart attack, and cardiac arrest by increasing heart rate, promoting blood clotting, and placing added strain on the heart. Older adults age 65 and older, people with cardiovascular disease, and those with chronic conditions such as high blood pressure or diabetes need to be especially careful. On days when a heat wave warning is issued, please stay active indoors for safety.

2026-06-26

Heat-Related Illness

#heat-related illness, #heat stroke, #heat exhaustion, #heat cramps, #heat edema, #heat wave, #dehydration, #summer health, #headache, #splitting headache, #migraine, #pain at the back of the head, #lack of energy, #listlessness, #persistent tiredness, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Heat-related illness is an acute emergency condition that occurs after prolonged exposure to a hot environment. It can cause headache, dizziness, muscle cramps, and, in severe cases, decreased consciousness. People who work outdoors, older adults, and children need to take particular care. If symptoms appear, move to a cool place immediately, and if heat stroke is suspected, call 119 (Korea's emergency number) right away. Please consult a medical specialist.

2026-06-26

Hemolytic Uremic Syndrome (“Hamburger Disease”)

#Hemolytic uremic syndrome, #Hamburger disease, #HUS, #E. coli, #Acute kidney injury, #Thrombocytopenia, #Hemolytic anemia, #Body swelling, #Face swelling, #Leg swelling, #Swollen hands and feet, #Loose stool, #Watery diarrhea, #Frequent bowel movements, #Blood in stool, #Bloody stool, #Bright red stool

Hemolytic uremic syndrome (HUS) is a condition in which hemolytic anemia (anemia caused by the destruction of red blood cells), thrombocytopenia (a drop in platelets, the blood components that help stop bleeding), and acute kidney injury (a sudden decline in kidney function) occur together. It is also known as “hamburger disease,” a name that came from cases linked to eating undercooked hamburger patties. It occurs most often in children age 5 and younger. If these symptoms are suspected, please see a medical specialist right away.

2026-06-26

Insomnia (Summer Tropical Nights)

#insomnia, #sleep disorder, #tropical night, #sleep hygiene, #body temperature, #cognitive behavioral therapy, #sleep, #lack of energy, #lethargy, #persistent fatigue, #unable to fall asleep, #frequent awakening, #difficulty sleeping deeply, #anxious feeling in the chest, #restlessness, #worrying for no reason

Insomnia is a sleep disorder in which difficulty falling asleep or frequent waking during sleep continues and interferes with daily life. Sleep can also be disrupted by environmental factors, such as tropical nights (very hot summer nights). If symptoms persist for 3 weeks or longer, please consult a medical specialist.

2026-06-26

Itchy Skin in Older Adults (Senile Pruritus)

#itchy skin, #aging skin, #dry skin (xerosis), #itching, #winter, #moisturizing, #eczema craquelé (cracked eczema)

Itchy skin in older adults is a common symptom in people in their 60s and older, and dry skin is the main cause. If the itching persists or becomes so severe that it disturbs sleep, please consult a dermatology specialist.

2026-06-26

Melasma

#melasma, #hyperpigmentation, #melanin, #ultraviolet rays, #skin, #laser, #photoaging

Melasma is a condition in which brown or gray-brown pigmented patches appear on the skin. It most often appears on the face, especially the cheeks and forehead. If you have symptoms, please consult a dermatologist.

2026-06-26

Nutritional Management After Gallbladder Surgery

#gallbladder cancer, #gallbladder, #unable to pass stool, #difficulty passing stool, #hard stool

2026-07-15

Sunburn

#sunburn, #ultraviolet rays, #UV exposure, #burn, #skin, #summer, #cooling, #sun protection, #fever, #having a fever, #high fever, #low-grade fever, #body shaking, #chills, #feeling cold and shivering, #hand tremor, #body tremor

Sunburn is an inflammatory skin reaction caused by excessive exposure to ultraviolet (UV) rays during outdoor activity. It can go beyond simple discomfort and lead to systemic symptoms. If symptoms are severe or persistent, please be sure to consult a dermatologist.

2026-06-26

Tinea Versicolor (Pityriasis Versicolor)

#tinea versicolor, #pityriasis versicolor, #fungus, #fungal infection, #skin, #spots, #summer

Tinea versicolor (pityriasis versicolor) is a skin condition in which a fungus called Malassezia overgrows on the skin and causes patchy, uneven spots. It tends to occur in summer, when people sweat a lot. If symptoms persist, please consult a dermatology specialist.

2026-06-26