In one sentence, describe what the following article is about: If you are on any medications or if you have a medical condition, then you should speak to your doctor before trying any over the counter medicines or nasal sprays. For example, if you have an enlarged prostate, glaucoma, heart disease, high blood pressure, or thyroid disease, check with your doctor or pharmacist before use because all decongestants, including sprays, can worsen these conditions. Your doctor can advise you on what medicines are and are not appropriate for you. Keep in mind that the potential side effects of decongestants include: Irritation to the lining of your nose, which may include nosebleeds A skin rash Headaches Dry mouth Restlessness or anxiety Tremor (uncontrollable shaking and trembling) Problems sleeping (insomnia) Rapid and/or irregular heartbeat Noticing your heart beating inside your chest (palpitations) Increased blood pressure Over-the-counter decongestants (those not requiring a prescription) include phenylephrine and pseudoephedrine as main ingredients. They work by constricting the blood vessels in the nose. This reduces how much blood flows through the area so that swollen tissue inside the nose shrinks and air can pass through more easily. Phenylephrine comes as a tablet, a liquid (spray), or a dissolving strip to take by mouth. Also, it is an ingredient in many cold/flu medications. Follow directions on the bottle on its use. Pseudoephedrine comes as a regular tablet, a 12-hour extended-release (long-acting) tablet, a 24-hour extended-release tablet, and a solution (liquid) to be taken by mouth. Follow the directions on the package. Nasal sprays help to clear congestion by shrinking blood vessels in your nose and reducing swelling. Ask your doctor about a prescription nasal spray or buy an over-the-counter nasal spray. To use a nasal spray canister: Gently blow your nose to clear it of mucus before using the medication. Shake the canister before using it. Keep your head upright and breathe out slowly. (Tilting back your head can lead to increased absorption into your body and increase side effects.) Use your finger on the free hand to close the nostril on the side not receiving the medication. Place the tip of the canister in your nostril and press down as you begin to breathe in slowly through your nose. Repeat these steps for the other nostril. Try not to sneeze or blow your nose just after using the spray. Do not use a nasal spray for more than three days. Using a nasal spray for more than three days can lead to rebound congestion, a condition in which the congestion returns. If your congestion lasts more than three days, use a nasal spray for the first three days then switch to an oral decongestant. Do not use both at the same time as this can increase risk of side effects.
Summary: Be aware that decongestant medicines and sprays can have some serious side effects. Consider taking an over-the-counter decongestant. Try a decongestant nasal spray. Limit the length of time that you use a nasal spray.

In one sentence, describe what the following article is about: Double-click the PDF to open it in Preview. If the PDF opens in software other than Preview, drag the PDF file to the Preview icon in the dock. Click the Edit button (a small square with a pencil icon) to display the editing toolbar. To ensure that all text in the document can be selected (not just the current page), click the View menu (the top left of the document, signified by a small box with a downward-facing arrow to its right) and place a check next to "Continuous Scroll." First, enable text selection by clicking the editing toolbar icon signified by the letter A next to a cursor. Now, click somewhere in the document, then press Command+A to select all text in the document. To copy the selected text, press Command+C. To paste the selected text into another document, click in the desired paste location and press Command+V.
Summary: Open the PDF in Preview. Show the editing toolbar. Allow continuous scrolling. Select all text in the document.

In one sentence, describe what the following article is about: Professional fishing spears are sold at most sporting goods stores. Find the straightest branch you can and carve the tip to a sharp point with a knife if you have to make a fishing spear. Green willow wood works best if you have to carve a spear, but any strong, straight branch will work. Try to find a branch with 2-3 prongs at the tip you can carve into a trident to snag fish more easily. If you buy a professional spear, you can even get one with a launching mechanism, like a speargun or a bow with fishing arrows. This method only works for catching large fish. It requires a lot of skill and patience. Stand somewhere where any light won't project your shadow onto the water. Your shadow will scare away fish and make it hard to spear any. Pick a spot near shallow water where you will be able to easily spot fish as they pass by. You can also spear fish at night with a flashlight or headlamp. Aim for the base of the head where it connects with the body to kill the fish immediately. Pull the spear back to you with the fish hooked on the end once you have speared one. This will take a lot of practice and patience. You will also need to learn to adjust your aim because water refracts light and causes the fish to appear in a different location than that which they are actually in. You need to aim lower than you think you do, so shoot just under where it looks like the fish is.
Summary:
Buy a fishing spear or carve one out of a branch. Find a place on the shore to hide your silhouette from passing fish. Jab your spear at the fish as they swim by.