Listing concepts that match "age 15 29 years"

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age 15-29 years
age 15-29 years is very common, occurring 1 in 5 users.
age 1-4 years
age 1-4 years is very common, occurring 1 in 16 users.
age 30-44 years
age 30-44 years is very common, occurring 1 in 5 users.
age 45-59 years
age 45-59 years is very common, occurring 1 in 4 users.
age 5-14 years
age 5-14 years is very common, occurring 1 in 11 users.
age 60-74 years
age 60-74 years is very common, occurring 1 in 6 users.
age 75+ years
age 75+ years is very common, occurring 1 in 10 users.
age < 1 years
age < 1 years is very common, occurring 1 in 30 users.
Year
Year is very common, occurring 1 in 9 users.
Years
Years is very common, occurring 1 in 12 users.
Tubocurarine
Brand names: Tubocurare, Tubocurarine Chloride, and 13H-4,6:21,24-Dietheno-8,12-Metheno-1H-Pyrido(3',2':14,15)(1,11)Dioxacycloeicosino(2,3,4-Ij)Isoquinolinium
A neuromuscular blocker and active ingredient in CURARE; plant based alkaloid of Menispermaceae.
Early or late onset of menopause
A complete stop to menstruation (i.e. "the period") for an entire year occurring before age 40 or having not occurred by age 60
Asthma
A chronic disease with recurring episodes of wheezing and difficulty breathing. Some patients have chronic cough as their only symptom. It is common among children, but also present in adults. Onset of the illness is usually before 50 years of age.
Teething syndrome
Also known as "teething," this is a normal process occurring in infants when their teeth come out, breaking or cutting through their gums. This typically occurs between six months to 3 years of age, and may be the cause of crankiness, irritability, and many other symptoms in infants.
Edward syndrome
A genetic disorder, present from birth, characterized by heart defects, physical deformities, intellectual disability, and many other problems. It is caused by an extra copy of chromosome 18. It is associated with advanced maternal age at time of pregnancy. Only 3% of cases result in live birth, and those rarely survive beyond the first year of life.
Chickenpox Vaccine (Shingles Vaccine)
Brand names: Varicella Vaccine, Varicella Virus Vaccine Live, and Varivax
A live, attenuated varicella virus vaccine used for immunization against chickenpox. It is recommended for children between the ages of 12 months and 13 years.
Absence of menstruation
Either never having a menstrual period (i.e. the period) in a girl over the age of 15 or missing a period for 3 months in a row after having had a regular period for the previous 9 months in a row
Wrinkles on skin
Any recent increase in skin wrinkling that is not due to aging (i.e. not wrinkling that slowly occurs over years)
Arginine
Brand names: Swineaid, Trophamine, and Travasol 10
An essential amino acid that is physiologically active in the L-form.
Lysine
Brand names: Nephramine, Trophamine, and Travasol 10
An essential amino acid. It is often added to animal feed.
Methionine
Brand names: Nephramine, Trophamine, and Travasol 10
A sulfur containing essential amino acid that is important in many body functions. It is a chelating agent for heavy metals.
Threonine
Brand names: Nephramine, Trophamine, and Travasol 10
An essential amino acid occurring naturally in the L-form, which is the active form. It is found in eggs, milk, gelatin, and other proteins.
Tryptophan
Brand names: Somnicin, Nephramine, and Trophamine
An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.
Hemangioma
A non-dangerous tumor of the inner lining of blood vessels, most commonly on the skin or in the liver. They often occur in infancy, but typically resolve by age 5. They also commonly occur with advancing age.
Hyperopia
Commonly known as "farsightedness," this is a defect in vision in which it is difficult to focus on nearby objects (e.g. when reading). Though often caused by weakening muscles in the eyeball with advancing age, it can occur for a variety of other reasons in any age group.
Presbyacusis
Loss of hearing that is a normal part of aging. It usually affects ability to hear high-pitched sounds more than low-pitched sounds. There are numerous causes, including degeneration of the blood vessels, nerves, and other structures in the ear.
Chickenpox
A highly contagious disease caused by the virus varicella zoster. Though symptoms tend to resolve on their own, the virus remains dormant in the body's nerves. It may become re-activated as shingles in older age. There is now a readily available vaccine for chickenpox.
Down syndrome
A genetic disorder, present from birth, characterized by slow growth, mild to moderate intellectual disability, and characteristic facial features. It is caused by an extra copy of chromosome 21. It is associated with advanced maternal age at time of pregnancy.
Ectropion
A condition in which the lower eyelid turns outwards. It can occur with certain congenital disorders, aging due to weakening of the lower eyelid tissues, certain anti-cancer therapies, and other causes.
Floaters
Small deposits that float inside of the eye, common with aging, leading to the perception of bright squiggly lines in the visual field. They are typically not dangerous.
Gynecomastia
The development of breast tissue in men. It is not dangerous and commonly occurs during puberty (usually resolving with age). More than a quarter of men over 50 have gynecomastia. However, It can also be a side effect of certain medications or a sign of other disorders such as liver failure.
Shingles (herpes zoster)
A painful skin rash that follows a particular distribution on the skin (referred to as dermatomes) based on the location of the nerves of the skin. The rash usually does not cross from the right to the left side of the body. This condition arises from the same virus that causes chickenpox being re-activated many years later (often in the elderly).
Huntington disease
A genetic disorder that runs in families, leading to slow damage to parts of the brain which results in abnormal muscle coordination, psychiatric problems, and reduced mental capabilities. Symptoms usually begin between age 35 and 44.
Impetigo
A contagious bacterial infection of the skin, commonly occurring in school-age children and adults who spend time in close contacts (e.g. sports teams, military). It is treated with antibiotics.
Flu
A common virus that causes infection of the nose and throat. The virus mutates, leading to new strains every year. Occasionally it can "jump" species, leading to recent outbreaks of avian or swine flu. Influenza can be deadly in some populations, such as the elderly or young children. A vaccine is available.
Stenosis of the tear duct
A blockage of the tear duct, the structure from which excess tears are move from the eye to the cavity of the nose. When it is blocked, tears can no longer drain, leading to watery and irritated eyes. Many infants are born with a blockage that will eventually clear. In adults, it can be due to age-related changes, infections or inflammation, injuries, and certain medications.
Muscular dystrophy
A group of muscle diseases marked by weakening of the muscles and difficulty with movement. Most forms are genetic and run in families, with symptoms presenting at an early age. There is no known cure, but a variety of therapies can improve quality of life.
Otitis externa (swimmer's ear)
Inflammation of the ear canal outside of the ear drum. It is most commonly due to bacteria. It affects all age groups, however children are most commonly affected. A moist ear canal facilitates bacterial growth (hence the name, "swimmer's ear").
Polymyalgia rheumatica
An inflammatory disorder leading to muscle pain and stiffness, primarily of the shoulders and hips. It most often occurs after the age of 60. The exact cause is unknown.
Premature atrial contractions (PACs)
A cardiac rhythm abnormality marked by premature heartbeats originating from the upper chambers of the heart. The exact cause is not known, but they are common among people of all ages, with or without heart disease. Without symptoms, this typically does not require treatment.
Presbyopia
A condition in which the eyes are no longer able to focus on nearby objects. Often first noticed when reading print in low light, this condition is common with aging, and is thought to be due to stiffening of the lens within the eye.
Onychomycosis
A fungal infection of the nail. It occurs more commonly with diabetes or advanced age due to decreased blood supply to the area. These can be difficult to treat.
Tourette syndrome
A neruological disorder characterized by tics (sudden, repetitive, stereotyped, involuntary movements or vocalizations). Symptoms typically begin in childhood, worsen during teenage years, and decrease in adulthood. It is known to run in families, but the exact cause is not known.
Varicose veins
A condition in which veins become enlarged, twisted, and more visible. They are most commonly seen in the legs with age and are typically not dangerous, though they can be painful.
Premature ovarian failure
A condition in which normal function of the ovaries, the organs containing eggs in females, is lost before the age of 40. This commonly leads to low levels of the hormone estrogen and often infertility. It may be due to genetic abnormalities, chemotherapy or radiation therapy, auto-immune diseases, or unknown factors.
Patau syndrome
A genetic disorder, present from birth, characterized by heart defects, physical deformities, intellectual disability, extra fingers, and many other problems. It is caused by an extra copy of chromosome 13. It is associated with advanced maternal age at time of pregnancy.
Degenerative disc disease
A shrinking of the cushioning discs between the bones of the spine. Although a normal part of aging, disc degeneration may lead to bone pain or compression of nerves, leading to pain, numbness, or weakness.
Brachial neuritis
Inflammation of a network of nerves in the shoulder and arm. Also known as Parsonage-Turner syndrome, the cause of this illness is unknown and it can lead to muscle weakness and paralysis in the arm. However, most cases get better within 1-2 years.
Rotator cuff injury
Any irritation or damage to the muscles or tendons of the rotator cuff. The rotator cuff is a group of muscles that connect the upper arm to the shoulder blade. This can occur due to a specific injury (e.g. throwing a ball too hard) or over time with age.
Benign kidney cyst
A non-cancerous, round, thin-walled, fluid-filled pocket in the kidney. These usually do not cause any harm. The exact cause is not known, though by age 50 nearly half of people have at least one. They are often monitored to see if they cause any problems.

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