- 21. Juvenile rheumatoid arthritis
- (Juvenile rheumatoid arthritis)
- ... cells and tissues. It's unknown why this happens, but both heredity and environment seem to play a role. Certain gene mutations may make a person more susceptible to environmental factors — such as viruses ...
- 22. Canker sore
- (Canker sore)
- ... disorder. This may be due to heredity or to a shared factor in the environment, such as certain foods or allergens. Your family doctor or general practitioner will likely be able to diagnose a canker ...
- 23. Ankylosing spondylitis
- (Ankylosing spondylitis)
- ... than are women. Your age. Onset generally occurs in late adolescence or early adulthood. Your heredity. Most people who have ankylosing spondylitis have the HLA-B27 gene. But many people who have this ...
- 24. Amyotrophic lateral sclerosis
- (Amyotrophic lateral sclerosis)
- ... risk factors for ALS include: Heredity. Up to 10 percent of the people who have ALS inherited it from their parents. If you have this type of ALS, your children have a 50-50 chance of developing the ...
- 25. Hair loss
- (Hair loss)
- Hair loss (alopecia) can affect just your scalp or your entire body. It can be the result of heredity, certain medications or an underlying medical condition. Anyone — men, women and children — can ...
- 26. Hearing loss
- (Hearing loss)
- ... 75 and close to one-half of those older than 75 have some degree of hearing loss. Doctors believe that heredity and chronic exposure to loud noises are the main factors that contribute to hearing loss ...
- 27. Attention-deficit/hyperactivity disorder (ADHD) in children
- (Attention-deficit/hyperactivity disorder (ADHD) in children)
- ... levels and attention. Heredity. ADHD tends to run in families. Several genes that may be associated with ADHD are currently being studied. Maternal smoking, drug use and exposure to toxins. Pregnant ...
- 28. Congenital Heart Disease
- (Medical Center Services)
- ... medication and heredity. There are many different types of congenital heart defects like holes in the heart, obstructed blood flow, abnormal blood vessels, heart valve abnormalities and a combination of ...
