Kashrut: Jewish Dietary Laws. Kashrut is the body of Jewish law dealing with what foods we can and cannot eat and how those foods must be prepared and eaten. Kashrut comes from the Hebrew root Kaf-Shin-Reish, meaning fit, proper or correct.
Squats obviously help to build your leg muscles (including your quadriceps, hamstrings, and calves), but they also create an anabolic environment, which promotes body-wide muscle building.
1 If you do air squats right, not only do air squats engage your legs and butt muscles, they also work your core, back and shoulders.  They increase mobility. To be able to squat properly, you need basic hip, ankle, and torso control.