Waking up dizzy and nauseous is a jarring way to start your day. You are not alone, and in most cases, it is not a sign of something dangerous. The most common reason is a sudden change in your body’s position causing a temporary drop in blood pressure or a disturbance in your inner ear … Read more

Body mass index, or BMI, is a simple calculation using your height and weight. You divide your weight in kilograms by your height in meters squared. The resulting number places you into a category: underweight, normal weight, overweight, or obese. It is a screening tool, not a direct measure of body fat or health. How … Read more

Breast sagging happens naturally as skin loses elasticity and breast tissue changes over time. No cream, pill, or exercise can fully reverse sagging once it has occurred. The only way to significantly lift sagging breasts is through surgery, though certain lifestyle changes and bras can improve appearance and slow further changes. What causes breasts to … Read more

Seeing blood in the toilet bowl or on the toilet paper can be alarming. It is a common problem, and in most cases the cause is not life-threatening. The most frequent reasons are hemorrhoids or small tears in the anus called anal fissures. But there are other causes that need a doctor’s attention, so knowing … Read more

Checking cervical mucus is one of the most reliable ways to track ovulation without expensive kits. You simply observe the mucus on your underwear, on toilet paper after wiping, or by inserting a clean finger into your vagina. The mucus changes from dry or sticky to a raw egg white consistency when you are most … Read more

What causes a pimple on the eyelid? A pimple on the eyelid is almost always a stye, medically called a hordeolum. It is an infection of an oil gland along the eyelash line. The gland gets blocked by dead skin, dried oil, or makeup, and bacteria — usually *Staphylococcus aureus* — start growing inside. The … Read more

Reading a dial micrometer sleeve thimble dial means looking at three separate scales and adding their values together. The sleeve shows tenths of an inch (0.100″), the thimble shows thousandths (0.001″), and the dial shows ten-thousandths (0.0001″). You read the sleeve first, then the thimble, then add the dial reading for the full measurement. What … Read more

Tapioca pearls are small, chewy balls made from cassava root starch. You most often find them in bubble tea, where they sit at the bottom of the drink and are sucked up through a wide straw. They are almost pure starch with added sugar, which gives them their signature soft and bouncy texture. What Are … Read more