If you want to know whether you carry a BRCA1 or BRCA2 mutation, the testing itself is a blood or saliva test ordered by a clinician and processed by a certified laboratory. You can get it through a primary care doctor, a genetic counselor, an obstetrician-gynecologist, or a cancer center’s genetics clinic. Some people order … Read more
A spherical virus is a tiny infectious particle built from a protein shell called a capsid that wraps around genetic material. Many of these viruses, including influenza and HIV, take their round shape from an outer envelope studded with proteins that latch onto host cells. That structure is not just cosmetic — it decides which … Read more
Letrozole does increase testosterone in men, but not by acting on testosterone directly. It works by blocking the enzyme aromatase, which converts testosterone into estrogen. When that conversion slows down, the body’s estrogen level drops and testosterone levels tend to rise. That effect is real and has been measured in clinical studies. The more important … Read more
Hair grows in ears because hair follicles exist in the ear canal and on the outer ear in nearly everyone, and in men especially, these follicles respond to hormones called androgens by producing thicker, longer, more visible hair as the decades pass. Ear hair is not a sign that something has gone wrong. It is … Read more
Most males reach their final adult height sometime between ages 16 and 20, with the typical window for the last bit of growth falling around 16 to 18. The exact timing depends on when puberty started, how fast it moved, and genetics. Growth does not stop on a birthday. It stops when the growth plates … Read more
A maternity belt works only when it sits in the right place and applies the right amount of pressure. Wear it low, across the pubic bone and the top of the hips, not across the belly. It should feel snug and supportive, never tight. You should be able to slide two fingers flat under the … Read more
For decades, KRAS was considered undruggable. The protein’s smooth surface offered no obvious pocket for a drug to grab. Then researchers found a shallow groove near one specific mutation — G12C — and designed molecules that slip into it. These drugs, called KRAS G12C inhibitors, lock the mutant protein in its inactive state and slow … Read more
Can dudes get pregnant? No. A man cannot carry a pregnancy, because pregnancy requires a uterus, and men do not have one. But the full answer is more interesting than a simple no, because a small number of people who were assigned female at birth, lived as men, and kept their reproductive organs can and … Read more
Menopause itching usually does not disappear on its own, but it can be managed. The itching that many women notice during perimenopause and after menopause is most often linked to falling estrogen levels, which change the skin’s thickness, moisture, and oil production. Once those hormonal shifts settle, some women notice improvement, but for many, the … Read more
An avocado pear is not fattening on its own. What determines whether it adds to weight gain is how many you eat, what you eat them with, and what they replace in your diet. An avocado is an energy-dense fruit — roughly 240 calories in a medium one — but calorie density and weight gain … Read more