Sometimes when your calcium/magnesium ratio is off, you can get twitching. I get one in my diaphram that feels like a fish flopping in my chest. If you are low in calcium intake, or very low in magnesium, the muscles do a dance of sorts. So you could try to balance that out.
(February 2017) A concrete slab is a common structural element of modern buildings. Horizontal slabs of steel reinforced concrete, typically between 4 and 20 inches (100 and 500 millimeters) thick, are most often used to construct floors and ceilings, while thinner slabs are also used for exterior paving.
As the foundation for a house, as a patio or even as a driveway, a cement slab can be a great flooring choice for a flat, supportive and durable foundation that is designed to last. However, pricing a cement slab can be tricky, and there are a lot of factors that can influence the final cost.