Going for a walk outdoors can improve your mood quickly. It breaks you out of your current environment, which can "shock" your senses into a new mood. It gives you a little exercise, which can improve your mood. Additionally, being outdoors in nature has been shown to improve people's moods. Once you are outdoors, try to focus on the nature things: notice any animals, insects, or flowers you don't normally notice. Observe other people interacting with nature. Watch the surface of a pond ripple. Before you know it, you may have forgotten all about your bad mood. Recent studies have shown that moods expressed on social media can be contagious. Reading your friends' negative statuses could be affecting your mood more than you realize. Additionally, comparing your own life to your perception of acquaintances' lives based on social media posts can affect your self-esteem negatively. If you are sitting in fluorescent lights, try turning them off and working by a dimmer lamp for a while. If it's dark where you are, try exposing yourself to brighter light. The change of lighting can help make your environment feel different, which might improve your mood. If you are able to, try getting natural light. Open the blinds or, better yet, a window and get some fresh air as well. Your music choice depends on your personal preferences. Some find it soothing to listen to music that matches their emotions (ie: sad music if they feel sad, angry music if they feel angry, etc) and then adjust to happier music as their mood improves. Others find that listening to uplifting music when they feel sad can elevate their mood. You may wish to try both methods to determine what works best for you.
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One-sentence summary -- Take a walk outside. Unplug from social media. Change the lighting. Listen to music.

You don't need any special tools to make a homopolar motor. All you need is a battery, a length of copper wire, and a neodymium magnet. You can use any kind of alkaline battery, but a larger battery, such as a C-cell, will be easier to hold. Get a few inches of copper wire. You can use bare wire or insulated wire. If you choose to use insulated wire, strip some of the insulation off at each end. You can find copper wire online, or at most hardware stores. Any neodymium magnet should do the trick for this experiment, but search for one with a conductive plating. You can buy nickel plated neodymium magnets of varying sizes online. You will also need one drywall screw. The screw will let you see the motor in action. Once you've successfully constructed the motor, the screw will spin. Take the neodymium magnet and attach it the head of the drywall screw. You can put the tip of the screw on either side of the battery. The side you choose will determine which direction your motor will spin. The single point of contact between the tip of the screw and the battery serves as a low-friction bearing. A heavier magnet will decrease the amount of friction between these two points. Take your copper wire and hold it to the other end of the battery. For example, if you placed your screw on the button end of the battery, hold the copper wire to the flat end. Gently place the free end of the copper wire to the side of the magnet. The magnet and the screw should start to spin. When you place the copper wire to the side of the magnet, you complete the circuit between the battery terminals. The current flows from one end of the battery, down the screw, and into the magnet. By touching the wire to the side of the magnet, you allow the current to keep flowing through the wire, and into the other end of the battery. A homopolar motor is capable of continuous rotation without the need to reverse the direction of the current. It does not take long for the screw to start spinning at high speeds. Both the screw and magnet could easily fly off the battery. Exercise caution when working with magnets and electricity. It is possible for the wire to get warm when conducting this experiment. Don't hold the wire to the magnet for extended periods of time.
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One-sentence summary -- Gather your materials. Put the magnet on the screw. Attach the screw to one end of the battery. Place the copper wire on the battery. Complete the motor.

This is when a doctor does some pulling and tugging maneuvers to strategically re-align your shoulder joint. You will sometimes be given muscle relaxants first, and occasionally a sedative as well depending upon the severity of your pain. Once your shoulder joint is re-aligned, the pain you feel should significantly improve. After your shoulder has been re-aligned, it will need to be immobilized for the first part of the healing period (generally three to four weeks). This is usually accomplished using a sling. After initial immobilization, your physician will recommend a specific rehabilitation program for you as your shoulder begins to feel better. Following through with the rehabilitation plan is key for recovering full range of motion. It is especially important if you are an athlete and if returning to optimum sports performance is your goal. Your rehabilitation will likely involve doing specific exercises and stretches to strengthen your shoulder. Exercises that your doctor might suggest may include isometric exercises, which strengthen the muscles without moving the joint, internal and external rotations, and/or band exercises. Perform an internal rotation by attaching an exercise band to a sturdy point about waist-high. Hold the band in your hand, bending your elbow to 90 degrees and resting it against your side. Keep your elbow steady against your side and pull the band across your body. Lay your forearm flat against your stomach if possible (but only pull as far as is comfortable). Then slowly release. Try an isometric adduction. Place a small item, like a rolled up newspaper, between your injured arm and your torso. Squeeze the item and try to hold it in place for five seconds. Repeat five to ten times. Check with your doctor before performing any exercises to avoid further injury. Since a dislocated shoulder can be quite a painful injury, you will likely need pain medications as you recover. Depending upon the severity of your injury, your doctor may offer you prescription pain meds for the first few days. Alternatively, you can opt for over-the-counter pain meds such as Acetaminophen (Tylenol) and/or Ibuprofen (Advil), which may be sufficient to keep the pain under control. Another strategy to help with recovery after a shoulder dislocation is icing the area. Icing helps to diminish inflammation and it can also temporarily ease the pain. For severe and/or repeated shoulder dislocations, surgery may be used as a last resort treatment. The risks of surgery are higher, so it is generally reserved for exceptional cases.
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One-sentence summary --
Undergo shoulder reduction. Immobilize your shoulder. Exercise your shoulder. Take pain medications as needed. Ice your shoulder. Use surgery as a last resort.