HB Mag Health Research Team
A fluoride varnish appointment is usually quicker and simpler than most people expect. Duraphat is a high-concentration fluoride varnish painted onto the teeth by a dentist or hygienist. The application takes a few minutes, you avoid certain foods and drinks for the rest of the day, and you can go back to normal brushing the … Read more
A sleeping newborn who suddenly smiles is one of the sweetest sights in early parenthood. That smile is not a sign of happiness or a reaction to a funny face. It comes from brain activity during sleep, mostly during a stage called active sleep, when the nervous system is busy building connections. These early smiles … Read more
Braces do not hurt when they are put on. The process of bonding brackets and threading the wire is painless because the surface of a tooth has no nerve endings in its enamel. Discomfort usually starts a few hours later, when the pressure of the wire begins to move the tooth through bone. That soreness … Read more
You can turn green paint or green makeup into brown by adding red, which sits directly across from green on the color wheel. Red and green are complementary colors, and mixing them neutralizes the green into a brownish, muddy tone. The exact brown you get depends on how much red you add, how dark the … Read more
Laser hair removal can fade or damage a tattoo, and the risk is real enough that most laser manufacturers and trained operators advise against treating skin directly over tattooed areas. The laser doesn’t know hair from ink. It targets pigment, and tattoo ink is pigment sitting in the skin. When the beam reaches it, the … Read more
Red eyes are one of the most recognizable signs that someone has used cannabis. The redness comes from blood vessels in the clear tissue covering the eye widening, which increases blood flow to the surface. That process is real, measurable, and well understood. The reasons it happens are rooted in basic physiology, not mystery. Why … Read more
A dental filling that feels strange when you bite down is usually a sign that the bite is slightly off or the filling is sitting a little high. That small difference in height changes how your teeth meet, and your jaw is remarkably sensitive to it. Most of the time this is a straightforward problem … Read more
Some infected wounds do heal without medical treatment. Many do not, and the ones that don’t can get worse quickly. A minor skin infection in a healthy person sometimes clears on its own, but an infection that is spreading, deep, or accompanied by fever needs medical care. The safe answer is not to wait and … Read more
Spicy food does not cause gastritis. That is the clear answer from decades of research on diet and stomach inflammation. What spicy food can do is make existing gastritis feel worse in some people, because capsaicin — the compound that gives chili peppers their heat — irritates nerve endings in a stomach lining that is … Read more
You have seen it mid-race: a cyclist or marathoner grabs a bottle, swishes a mouthful of sports drink, and spits it onto the road. It looks like waste, or maybe a stomach problem. It is neither. This is a deliberate technique called carbohydrate mouth rinsing, and the science behind it is stranger than most people … Read more