Hihy Health
Encyclopedia

Acute Fatigue

#fatigue, #chronic fatigue, #acute fatigue, #stress, #sleep, #anemia, #thyroid, #lack of energy, #listlessness, #feeling tired all the time, #anxious feeling in the chest, #restlessness, #worrying for no reason

Fatigue is a state in which the whole body feels weak, or tasks that are usually easy feel exhausting. It is classified as acute if it lasts less than 1 month and chronic if it lasts 3 months or longer. The causes of fatigue are very diverse, so if fatigue lasts 1 to 2 weeks or longer despite enough rest, please consult a medical specialist.

2026-06-26

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

Chronic Fatigue Syndrome

#chronic fatigue syndrome, #antidepressants, #cognitive behavioral therapy, #exercise therapy, #chronic fatigue, #fatigue, #sleep disorder, #depression, #rehabilitation, #headache, #splitting headache, #migraine, #pain at the back of the head, #lack of energy, #listlessness, #persistent tiredness

Chronic fatigue syndrome is a condition in which severe fatigue persists for 3 months or longer even with adequate rest. Because there are many hypotheses about its cause, treatment is tailored to each individual. Antidepressants, cognitive behavioral therapy, and graded exercise therapy have been reported to be helpful. Please consult a medical specialist before deciding on the direction of treatment.

2026-06-26

Chronic Hepatitis B

#hepatitis B, #chronic hepatitis B, #cirrhosis, #liver cancer, #antiviral drugs, #vaccination, #vertical transmission, #lack of energy, #listlessness, #persistent tiredness, #loose stools, #watery diarrhea, #frequent bathroom visits

Hepatitis B is an infection caused by the hepatitis B virus. If chronic hepatitis B is not treated, it can progress to cirrhosis and liver cancer. People without antibodies should get vaccinated. If you have chronic hepatitis B, please have regular checkups and consult a medical specialist about treatment.

2026-06-26

Chronic Kidney Disease (CKD)

#chronic kidney disease, #chronic renal failure, #kidney, #renal, #proteinuria, #glomerular filtration rate, #diabetic nephropathy, #lack of energy, #listlessness, #persistent tiredness, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Chronic kidney disease (CKD) is a condition in which abnormalities in kidney function or structure persist for 3 months or longer. In the early stages there are often no particular symptoms, so the disease may go unnoticed and be discovered only after it has progressed considerably. People who have diabetes or high blood pressure, or who have a family history of kidney disease, need regular testing. If a health checkup reveals a kidney abnormality, please consult a medical specialist to confirm it.

2026-06-26

Dry Eye Disease

#dry eye disease, #dry eye, #tears, #foreign body sensation, #artificial tears, #blepharitis, #lack of energy, #listlessness, #persistent tiredness, #anxious feeling, #nervousness, #worrying for no reason

Dry eye disease is a condition in which the surface of the eye becomes dry because there are not enough tears or the tears evaporate too quickly. It causes a variety of symptoms, such as stinging, dryness, and a feeling that something is in the eye. If symptoms are severe or persist, please consult an ophthalmology specialist.

2026-06-26

Early Detection and Management of Liver Disease

#liver disease, #liver cancer, #cirrhosis, #hepatitis B, #hepatitis C, #fatty liver, #nonalcoholic steatohepatitis, #hepatectomy, #minimally invasive surgery, #early screening, #alcohol abstinence, #lack of energy, #listlessness, #persistent tiredness, #nausea, #feeling about to vomit, #vomiting

The liver is a 'silent organ.' Even as damage progresses, there are no obvious symptoms in the early stage, so fatigue, loss of appetite, and weight loss are often dismissed as minor, and the disease is often discovered only after it has progressed to cirrhosis or liver cancer. Regular checkups are the most important way to protect liver health.

2026-06-26

Glaucoma

#glaucoma, #optic nerve, #intraocular pressure, #visual field loss, #normal-tension glaucoma, #how to use eye drops, #headache, #splitting headache, #migraine, #pain at the back of the head, #lack of energy, #listlessness, #persistent tiredness

Glaucoma is a disease in which the optic nerve inside the eye is gradually damaged by high intraocular pressure or other factors, causing the visual field to narrow progressively. There are almost no symptoms in the early stage, so detection can be delayed, and rather than a cure, lifelong consistent management is important. Detecting it early through regular checkups and starting treatment is the best way to help prevent blindness.

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

Hepatitis A

#hepatitis A, #hepatitis, #acute hepatitis, #hepatitis vaccination, #contaminated food, #jaundice, #liver function, #feeling feverish, #body heat, #high fever, #low-grade fever, #lack of energy, #listlessness, #persistent tiredness

Hepatitis A is an acute infectious disease caused by the hepatitis A virus. It is spread through contaminated food or water, and most people recover. It does not progress to chronic hepatitis, but in rare cases it can take a serious course. People who do not have antibodies should be vaccinated.

2026-06-26

Hepatitis B

#hepatitis B, #chronic hepatitis, #antiviral drugs, #cirrhosis, #liver cancer, #HBV, #vaccination, #liver health, #lack of energy, #listlessness, #persistent tiredness, #dry cough, #persistent minor cough, #cough that will not stop

Hepatitis B is a liver inflammation caused by the hepatitis B virus. In Korea, about 30% of cirrhosis cases and 45% of liver cancer cases are associated with hepatitis B. It can be managed with proper care, including vaccination and consistent treatment, and regular checkups are important to help keep it from progressing to cirrhosis or liver cancer.

2026-06-26

Key Symptoms in Pediatric Emergencies

#pediatric emergency, #pediatrics, #emergency room, #fever, #febrile seizure, #dehydration, #cough, #rash, #hives, #fall, #chest pain, #seizure, #stomachache, #my stomach hurts, #stomach upset, #abdominal discomfort, #chest ache, #pain in the chest, #chest tightness, #stuffy feeling in the chest, #feverish, #having a fever, #high fever, #low-grade fever, #breathlessness, #difficulty breathing, #labored breathing, #feeling of suffocation, #dry cough, #persistent cough, #cough that won't stop, #racing heart, #pounding heart, #rapid pulse, #loose stool, #watery diarrhea, #frequent trips to the bathroom, #blood on stool, #bloody stool, #bright red stool

When a child suddenly becomes ill, it can be difficult to decide whether to go to the emergency room right away or to wait and see a local clinic. Unlike adults, children can worsen quickly, so if your child looks or acts differently from usual, do not hesitate to seek medical care.

2026-06-26

Liver Cancer

#liver cancer, #hepatitis, #cirrhosis, #liver cirrhosis, #fatty liver, #silent organ, #liver transplantation, #laparoscopy, #lack of energy, #listlessness, #persistent tiredness

Liver cancer is a malignant tumor that develops in the liver, which is responsible for detoxification and nutrition in the body. The liver is called the 'silent organ' because there is no particular pain even when the disease becomes advanced. By the time symptoms appear, the disease has often already progressed considerably, so please do not judge on your own; be sure to have regular checkups and consult a medical specialist.

2026-06-26

Malaria

#malaria, #mosquito, #parasite, #fever, #chills, #overseas travel, #preventive medication, #headache, #splitting headache, #migraine, #pain at the back of the head, #feeling feverish, #body heat, #high fever, #low-grade fever, #body shaking, #feeling cold and shivering, #cold sensation, #lack of energy, #listlessness, #persistent tiredness, #hand tremor, #body tremor

Malaria is a parasitic infectious disease caused by the bite of a mosquito carrying the malaria parasite. It causes cold-like symptoms such as fever and chills, and delayed treatment can lead to serious complications. Before traveling to an area where malaria is a risk, please consult a medical specialist.

2026-06-26

Multiple Myeloma

#multiple myeloma, #blood cancer, #plasma cell, #fracture, #vertebral fracture, #bone pain, #kidney failure, #monoclonal antibody, #lack of energy, #listlessness, #persistent tiredness, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet, #nausea, #feeling about to vomit, #vomiting, #unable to pass stool, #difficulty having a bowel movement, #hard stools

Multiple myeloma is a blood cancer in which cancer develops in plasma cells (the cells that make antibodies). It mainly occurs in older adults. Anemia, kidney failure, bone pain, and repeated fractures are characteristic symptoms. If you develop bone pain, repeated fractures of unknown cause, or anemia, please consult a hematology-oncology specialist.

2026-06-26