Write an article based on this "Get a field hockey stick and ball. Purchase shin guards and a mouth guard, and goggles. Wear field hockey cleats while playing."
article: There are plenty of brands, so shop around and find a stick that feels comfortable in your hands. A good stick will come up about to your hip when you hold its blade flat against the ground. Play around with the stick, taking some time to push around the small, hard ball used in field hockey games.  The average weight of a field hockey stick is about 21 oz (600 g). Many forwards choose lighter sticks that are easier to maneuver. Many players also carry at least 2 sticks in case they play different positions. Every stick has a flat side and a rounded side. The flat side is the part you use to strike the ball. The ball is plastic and about the size of a golf ball. These are the basic protective tools every field hockey player needs. The shin guards are similar to soccer shin guards but offer a little more ankle protection. You can wear socks underneath them to make them more comfortable. Mouth guards always tend to feel uncomfortable, but they are the most important protective gear available. Goggles help protect you from flying balls and high sticks. They protect the sides and front of your face.  You can get gear online or at most sporting good stores. If you have soccer shin guards, they can be a good starting point as you learn the game. Goalies also need a lightweight arm and leg padding as well as a cage helmet. Most players don't start off in goal, so consider learning the game as an outfield player before you decide on becoming a goalie. Gloves are optional pieces of equipment. Many players like wearing them for additional protection. Field hockey matches are played on grass or turf like football, soccer, and other outdoor sports. Field hockey shoes have small, rubber cleats on the bottom that keep you from slipping while you run. Choose a pair of shoes that fit you but don't feel restrictive. If you have soccer cleats, start with those. The cleat studs are longer but still provide plenty of traction on the field. When you get more involved with field hockey, you can then choose specialty field hockey cleats.

Write an article based on this "Wear proper personal protective equipment (PPE). Work in a ventilated area. Add acid to water."
article: When working with strong chemicals and solutions you want to make sure that your body is protected from harm. Wearing a lab coat, close-toed shoes, eye protection, and gloves are essentials when handling these compounds.  Wear a lab coat that is made of an inflammable material. Eye protection should have side shields to protect from splashes across the face. When mixing solutions together, volatile gases can be formed and escape into the air. Some chemicals can only be handled in a chemical fume hood found in a laboratory. If working at home, open windows and have a fan blowing to make sure the air circulates. When diluting strong acids, always add the acid to the water. When water and acid mix, the reaction is exothermic (releases heat) and can be explosive if the water is added to the acid instead of the other way around. Refresh your memory with the proper safety precautions every time you work with acids.

Write an article based on this "Get an epidural blood patch for severe chronic headache. Try an epidural saline solution. Get surgery as a last resort. Make sure an appropriate needle is used during your spinal tap or anesthesia procedure. Make sure the needle is oriented properly."
article:
If your headache does not resolve within 24 hours, despite taking steps mentioned above, get an epidural blood patch.  During an epidural blood patch procedure, a small amount of your own blood will be injected in the space just outside the perforation in your spine. The blood will clot, sealing the perforation and restoring pressure in the spinal membrane. This restores spinal pressure and stops further leakage, relieving headache symptoms. The success rate of this technique is more than 70%. Usually, 15-30 ml of your blood will be taken from your arm, and then you will lie on your side for 2 hours. This procedure can be repeated up to 2 times if the primary attempt fails to control headache. An epidural blood patch should not be done if you have a fever or skin infection. A saline solution such can be injected into the epidural space instead of blood.  It produces a similar effect as blood, but is sterile and comes with a much lower risk of infection. However, saline solution is thin and rapidly absorbed by the epidural space, meaning that the pressure is not as effectively maintained as with a blood epidural. 1–1.5 liters (0.4 US gal) of Hartmann saline solution can be administered over a 24 hour period, starting the same day of the spinal tap or anesthesia. Surgery is the last treatment option for spinal headache.  When all other measures fail to stop a spinal leak, surgery can be attempted to repair the perforation. It immediately stops the CSF leak, but carries the risk of infection and is somewhat invasive. Therefore, your doctor will counsel you thoroughly (regarding the procedure, and its pros and cons) before undergoing surgery. By using a small needle, the risk of spinal fluid leak is dramatically reduced, because the likelihood of a leak is related to the size of the needle perforation.  Using an appropriately needle size and shape can minimize the likelihood of spinal headache. A large needle bore will produce a large perforation, so it is always best to use small bore needles, usually between 24-27 gauge. Use a pencil point needle instead of a cutting type to minimize the chance of leakage. If possible, use a new type of needle, known as an Atraucan needle that has a narrow cutting tip and a bevel that greatly reduces the chance of spinal headache. Orientation of the needle is also important. If the beveled edge of the needle is kept horizontal when it is introduced, there a greater chance of tissue damage. The beveled edge should always be kept vertical and parallel to the fibers.