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Born in the early 1900s, Chalmers invented the menstrual cup out of a passion for bettering women's sexual health. Chalmers created her first version of the menstrual cup in 1937, shortly after the invention of the tampon. She sought to create a reusable menstrual product to compete with the existing disposable menstrual products on the market.
Early menstrual cups were made of rubber. [166] The first menstrual-cup applicator was mentioned in a 1968 Tassaway patent; there are also 21st-century versions, but they have not been a commercial success, as of 2024. [167] No medical research was conducted to ensure that menstrual cups were safe prior to introduction on the market. [77]
A cup is an open-top vessel (container) used to hold liquids for drinking, typically with a flattened hemispherical shape, and often with a capacity of about 100–250 millilitres (3–8 US fl oz). [1] [2] Cups may be made of pottery (including porcelain), glass, metal, [3] wood, stone, polystyrene, plastic, lacquerware, or other
Here’s what period cups are and how they work. ... there were traces of 16 heavy metals—including some considered toxic—likely due to heavy metal contamination of soil in the agricultural ...
Factory-made dolls and doll houses delighted the girls and organized sports and activities were played by the boys. [50] The Boy Scouts was founded by Sir Robert Baden-Powell in 1908, [ 51 ] which provided young boys with outdoor activities aiming at developing character, citizenship, and personal fitness qualities.
Two weeks later, Ashley's OB-GYN introduced a major plot twist. The Meyers weren't having twins — they were having quintuplets, two boys and three girls. Suddenly, "We can handle this" turned to ...
However, no big names manufacturers were interested, so she started manufacturing herself. [5] In 1949, the "Boater" was a great success at Saks Fifth Avenue. A couple years later, she sold her company and her patents to Keko Corporation for a million dollars because even though she considered continuing her creation of a diaper with absorbent ...
OASI is observed in about 5.7% of first time mothers and 1.5% in people who have given birth before with no prior OASI. [4] In an 8-year study done at sub-Saharan hospitals, out of 100,307 vaginal deliveries, 2.1% resulted in OASI with forceps delivery found to have a higher incidence rate of 8.6% compared to 1.3% in normal vaginal deliveries.