From daily habits to nutrition and sleep, explore informational guides on living a healthier life — backed by research and written for real people.
Powdered milk can last a long time, but it does not last forever. The best way to tell if it is still good is to check the expiration date, then open the container and use your senses. If the powder has an off smell, a change in color, or tastes stale or sour, it is … Read more
If your phone only charges when the cable sits at a specific angle, the problem is almost always a loose or damaged connection point. This usually means the charging port on your phone has worn out, the cable’s connector is bent or broken, or lint and debris inside the port are blocking a full connection. … Read more
When you comb through wet hair and see something move, you likely have head lice. On the comb, head lice look like tiny sesame seeds — tan, gray, or brownish — about the size of a sesame seed or a grain of sand. They have six legs and move quickly. The real giveaway is that … Read more
A urinary tract infection needs prompt attention. The first step is to see a healthcare provider for a proper diagnosis. If tests confirm a bacterial infection, they will likely prescribe antibiotics. You should also drink plenty of water and urinate often to help flush the bacteria from your system. Do not wait to see if … Read more
Designing a PCR primer means creating a short piece of DNA, usually 18 to 24 bases long, that binds to a specific target sequence so the polymerase enzyme can copy it. A good primer pair needs three things: a unique match to your target, a balanced melting temperature between the two primers, and no ability … Read more
Bitter tea usually means one of three things: the water was too hot, the leaves steeped too long, or you used too much tea for the amount of water. Fix those three variables and you will eliminate most bitterness. The most common mistake is pouring boiling water over delicate leaves, which scorches them and releases … Read more
The Department of Veterans Affairs does not cover liposuction for cosmetic reasons. The VA only considers liposuction when it treats a medical condition and meets strict coverage rules. This distinction between medical and cosmetic is the single most important factor in whether the VA will pay for the procedure. What Does the VA Consider Medical … Read more
Most people do not need their wisdom teeth removed just because they exist. The decision comes down to whether they are causing problems or are likely to cause problems soon. You need removal when they cause pain, damage nearby teeth, become infected, or cannot erupt properly because there is not enough room. If your wisdom … Read more
A standard 8-ounce cup of brewed coffee contains roughly 95 milligrams of caffeine. That number is a reliable average, but the actual amount in your mug can range from as little as 65 milligrams to well over 150 milligrams. The type of bean, the roast, and the way you brew all change the final count. … Read more
Tomatoes do not cause inflammation for most people. In fact, the opposite is true: tomatoes contain compounds that may help reduce inflammation in the body. The confusion comes from a single compound called solanine, which some people believe triggers arthritis pain. The science does not support that claim for the general population. A small number … Read more