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.
The benefits of a slab on grade modular structure are innumerable. Multi-story facilities are commonly designed for slab on grade modular construction. Higher ceiling heights can be accomplished for churches, multi-purpose rooms. Slab on grade modular buildings are permanent in every aspect for building permits. Slab on grade modular buildings offer simultaneous site construction and factory fabrication. The occupancy time lines are almost as quick as the traditional factory built structures.