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Civilian AR-15 rifles are commonly found with 1 in 12 inches (30 cm) or 54.8 calibers for older rifles and 1 in 9 inches (23 cm) or 41.1 calibers for most newer rifles, although some are made with 1 in 7 inches (18 cm) or 32 calibers twist rates, the same as used for the M16 rifle. Rifles, which generally fire longer, smaller diameter bullets ...
Dermatophytosis as a cause of alopecia is common in cats, too, and in long-haired varieties, dermatophytic pseudomycetomas may be to blame. [7] Alopecia areata has been studied on mice in laboratories. [8] In horses, human contact with the horse and the rubbing of the saddle across the mane can cause patches of hair loss. [7]
There are different types of balding and hair loss, but common signs of hair loss include a receding hairline, bald patches, thinning hair or hair loss from the back of the head.
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves ("rifling") cut into the barrel walls.The raised areas of the rifling are called "lands," which make contact with the projectile (for small arms usage, called a bullet), imparting spin around an axis corresponding to the orientation of the weapon.
Alopecia occurs for various reasons, including genetics, autoimmune disorders where the immune system attacks hair follicles, hormonal changes, medical treatments like chemotherapy, or other factors.
Traction alopecia is a type of alopecia or hair loss caused by a chronic pulling force being applied to the hair. [1] It commonly results from a person frequently wearing their hair in a particularly tight ponytail, pigtails, or braids with increased likelihood when hair is chemically relaxed as this compromises the hair shaft's tensile strength resulting in hair breakage.
The cause of male-pattern hair loss is a combination of genetics and male hormones; the cause of female pattern hair loss is unclear; the cause of alopecia areata is autoimmune; and the cause of telogen effluvium is typically a physically or psychologically stressful event. [4] Telogen effluvium is very common following pregnancy. [4]
WHAT CAUSES HAIR LOSS? "There are many causes of hair loss, but by far the most common cause is hereditary hair loss with age," Phipps says. "Some men and women have a genetic predisposition for ...