Types of Ferns to Grow Indoors. Ferns are a class of plants that include about 12,000 species in 150 different families. In their native habitats, most types of ferns grow on the moist, nutrient-rich forest floor where they receive little light. Some are epiphytes, nestled on the branches of tall trees. Just a dozen or so make their way into our homes.
What Are the Risks of Spinal Decompression Surgery? As with any surgery, there are risks. These are some of the more common risks associated with spinal decompression surgery: Infection; Bleeding; Blood clots; Allergic reaction to anesthesia; Nerve or tissue damage; Another risk of surgery is that it may not improve back pain much.
Decompression sickness (DCS; also known as divers' disease, the bends or caisson disease) describes a condition arising from dissolved gases coming out of solution into bubbles inside the body on depressurisation.ecompression sickness should be suspected if any of the symptoms associated with the condition occurs following a drop in pressure, in particular, within 24 hours of diving. In 1995, 95% of all cases reported to Divers Alert Network had shown symptoms within 24 hours.