Tag: Adult health

According to a study published in Neurology, a smaller head circumference in adults can be associated with certain neurological conditions. This raises the important question: **What is a small head circumference for adults?** This condition, known medically as microcephaly, involves a head size significantly below average for a person's age, sex, and ethnicity.

Medically, an adult's head circumference that is larger than two standard deviations above the average for their age and sex is termed macrocephaly, which typically translates to a size beyond 23-24 inches for men and 22-23 inches for women, but requires professional context. This guide explores what is considered a big head size in inches, distinguishing between benign and serious causes.

According to research, the average adult head circumference typically falls between 21 and 23 inches. Concerns about head size are common, and understanding the range for **what's a normal head size in inches** can provide significant peace of mind.

Recent studies have revealed that many adults spend a startling nine or more hours a day sedentary, a significant increase over previous estimates. This prolonged inactivity is a growing public health concern, as understanding **how many hours do adults spend sitting?** is the first step toward mitigating serious health risks. It's time to face the facts about our sedentary habits and explore what we can do to change them.

According to one study, skull asymmetry is evident in a significant portion of the population, indicating that a perfectly symmetrical skull is rare. So, is it normal for the top of your head to be uneven? For most people, minor variations in skull shape are simply a harmless result of natural bone structure and are completely normal.

Facial and cranial asymmetry are common, with up to 46% of healthy babies experiencing some form of asymmetrical head shape. For adults wondering, “Is it normal for my skull to be asymmetrical?”, the answer is often yes, but understanding the cause and knowing when to seek professional advice is essential for your general health.

While the "Back to Sleep" campaign has successfully reduced Sudden Infant Death Syndrome (SIDS) by over 50% since 1992, it has also led to an increase in positional plagiocephaly, or "flat head syndrome," in infants. This raises a common question for many: **Can I fix the shape of my head?**

For most individuals, height does not increase after age 18 to 20 because the growth plates in bones close. This biological reality means the question, **Can you get a growth spurt in your 20s?**, has a clear, medically-grounded answer rooted in skeletal development.

The body's metabolism begins to slow down around the late twenties, which can cause people to wonder **what age do you start gaining weight**. This natural process is influenced by many factors, from hormonal shifts to lifestyle changes, and is more complex than a simple number on the scale.

According to a groundbreaking study in *Science*, infants between 9 and 15 months expend a stunning 50% more energy per day than adults, adjusted for body size. This often surprising fact addresses the common question of **why do adults need more energy than children?** The answer lies in the fundamental difference between total caloric requirements and relative metabolic rate.