A recent email from the yarn company Red Heart titled "Health Benefits of Crocheting and Knitting" prompted me to explore what else might be known about the health value of activities like knitting.

最近，一封来自红心纺纱公司的题为“钩编和针织的益处”的电子邮件促使我去探索像针织这样的活动还有什么其它的健康价值。