A mouthguard can be remolded at home if it is a boil-and-bite type. Heat it in hot water until it softens, let it cool just enough to handle, then bite down firmly and hold for about 30 seconds while it sets around your teeth. Mouthguards that were custom-made by a dentist cannot be remolded at … Read more

Feeling tired all the time is the most common sign of low iron, but it is not the only one. Low iron can cause pale skin, shortness of breath with mild activity, brittle nails, unusual cravings for ice or dirt, and trouble concentrating. The cause is usually blood loss, a diet that does not supply … Read more

After thyroid surgery, the hardest part of recovery is often the first few nights of sleep. The safest and most comfortable position after a thyroidectomy is on your back with your head and upper body raised about 30 to 45 degrees, using two or three pillows or a wedge. This position reduces swelling and fluid … Read more

You cannot target belly fat with crunches, planks, or any other spot exercise. The body does not burn fat from the muscle you happen to be working. What actually reduces belly fat is a calorie deficit combined with regular physical activity, and the workout that helps most is the one you will keep doing for … Read more

White vinegar starts as alcohol. Bacteria called Acetobacter convert that alcohol into acetic acid, and the result is a sour, clear liquid that has been made the same basic way for thousands of years. In the United States, most white vinegar sold in grocery stores is a diluted form of distilled acetic acid produced from … Read more

A chest X-ray is a two-dimensional shadow image of everything between your lungs and your breastbone. Dense structures like bone and fluid block more X-ray beams and show up white. Air-filled spaces like healthy lungs let beams pass through and show up black. That single fact explains most of what a chest X-ray can and … Read more