Salmon is oily because it is a fatty fish built for cold water and long-distance swimming. Its flesh stores fat as an energy reserve and as insulation, and that fat is packed with omega-3 fatty acids the fish cannot make efficiently on its own. The oiliness is not a defect or a sign of poor … Read more
Yes, many antihistamines cause sleepiness — but not all of them. The first-generation antihistamines, like diphenhydramine and chlorpheniramine, cross into the brain and block histamine signals that help keep you awake. The newer second-generation antihistamines, like loratadine and cetirizine, are built to stay mostly outside the brain, so they cause far less drowsiness. That single … Read more
Anemia is not a disease. It is a finding — a sign that something in the body is off. And the way doctors confirm it is almost always through a small set of blood tests, starting with a complete blood count. That test measures hemoglobin, the oxygen-carrying protein in red blood cells. When hemoglobin drops … Read more
Whether your insurance pays for acne treatment depends almost entirely on two things: why you’re being treated and what kind of treatment you need. Medically necessary acne care — the kind a doctor documents as a disease process, not a cosmetic concern — is often covered, at least in part. Purely cosmetic treatments, like facials … Read more
Looking in the mirror with your mouth open and seeing a white patch at the back of your throat is unsettling. The most common reason is a throat infection, usually viral, in which inflammation causes the tissue to swell and shed cells and mucus that collect as a white coating. Strep throat is the best-known … Read more
You cannot force a specific dream to order, but you can influence what your mind builds at night. The most reliable method is to think about your goal often during the day, especially in the hour before sleep, because the sleeping brain tends to replay and reshape material it processed recently. Keeping a dream journal … Read more
Hair that snaps easily and sheds more than usual is usually the result of one of a few well-understood problems: a nutrient gap, a thyroid or hormone issue, a shedding event that started two to three months ago, or damage from how you treat your hair. Hair is one of the first places the body … Read more
Premenstrual dysphoric disorder, or PMDD, is a severe form of premenstrual syndrome that affects roughly 3% to 8% of women of reproductive age. The question of whether PMDD is genetic has a more interesting answer than most people expect: family and twin studies consistently show that PMDD runs in families, and the heritability estimate from … Read more
Cinnamon is one of the most studied spices in the world, and it’s often promoted as a natural way to lose weight. The truth is more modest: no clinical trial has shown that cinnamon causes meaningful weight loss in humans. Some small studies have found minor changes in body weight or belly fat, but the … Read more
Waking up with a stiff, aching back is common, and it usually has more to do with your mattress, your sleep position, and how you moved the day before than with anything seriously wrong. For most people, the pain eases within 30 minutes of getting up and moving around. If it does not, or if … Read more