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The rate of inheriting the disorder is estimated to be about 76% among children and adolescents and between 70 and 80% among adults. [7] [13] The exact causes of ADHD are still not fully understood, but non-genetic biological risk factors (e.g., low birth weight, events during pregnancy) and environmental factors are also thought to play a role ...
Osteoarthritis (OA) is a type of degenerative joint disease that results from breakdown of joint cartilage and underlying bone. [5] [6] It is believed to be the fourth leading cause of disability in the world, affecting 1 in 7 adults in the United States alone. [7]
Osteoarthritis is the most common form of arthritis, affecting more than 32.5 million adults in the United States.
There are common risk factors that increase a person's chance of developing arthritis later in adulthood. Some of these are modifiable while others are not. [2] [3] Some common risk factors that can increase the chances of developing osteoarthritis include obesity, prior injury to the joint, type of joint, and muscle strength. [50] [51]
The risk for most arthritis types increases with age. Research from the Centers for Disease Control and Prevention (CDC) noted that 3.6 percent of adults aged 18 to 34 had arthritis, compared to ...
The precise causes of ADHD are unknown in most individual cases. [38] [39] Meta-analyses have shown that the disorder is primarily genetic with a heritability rate of 70-80%, [40] where risk factors are highly accumulative. [41]
Psychosis risk increases 81% on high-dose amphetamine. For this study, researchers analyzed medical data from adults between the ages of 16 and 35 treated at Mass General Brigham between 2005 and ...
Obesity is a known and very significant risk factor for the development of osteoarthritis. [9] Risk increases proportionally to body weight. Obesity contributes to OA development, not only by increasing the mechanical stress exerted upon the knees when standing, but also leads to increased production of compounds that may cause joint ...