A healthy weight for a girl depends on her height, age, and body composition, but generally falls within a Body Mass Index (BMI) of 18.5–24.9, with specific weight ranges varying significantly by height (e.g., 97–123 lbs for 5'0", 110–140 lbs for 5'4"), and it's crucial to consult a healthcare professional for personalized advice as weight charts don't capture all health factors.
The Devine formula for calculating ideal body weight in adults is as follows:
70kg isn't inherently heavy for a woman; it depends heavily on height, body composition, and build, but it often falls into a healthy range for taller women, while for shorter women, it could lean towards overweight. For example, a 175cm (5'9") woman at 70kg has a healthy BMI, but a 163cm (5'4") woman at the same weight might be considered borderline overweight, according to this article from The Daily Telegraph.
Yes, 40 kg is generally a very normal and healthy weight for a 12-year-old, often sitting right around the average (50th percentile) for both boys and girls, but a truly healthy weight depends more on height, build, and overall development, so consulting a doctor using growth charts (like BMI percentiles) is best for personalized guidance.
under 18.5kg/m2 – you are considered underweight and possibly malnourished. 18.5 to 24.9kg/m2 – you are within a healthy weight range for young and middle-aged adults. 25.0 to 29.9kg/m2– you are considered overweight. over 30kg/m2 – you are considered obese.
Why does weight gain happen faster with age? Dr. Mansuri: The metabolism naturally slows down with age, meaning the body burns fewer calories at rest and during physical activity. There is also a gradual loss of muscle mass, known as sarcopenia, which further reduces metabolic rate.
Whether 80kg (176 lbs) is "heavy" for a woman depends on her height, body composition (muscle vs. fat), and frame, as Body Mass Index (BMI) can categorize it as overweight or obese for shorter women but might be healthy for taller individuals with significant muscle mass, though a BMI over 30 (obesity) is generally considered unhealthy for most. A single number doesn't define health; factors like fitness level, strength, and body shape matter more than just weight.
Sleep deprivation has long been linked to an increased risk of becoming overweight or obese. Researchers found that getting less than seven hours of sleep resulted in weight changes and may lead to weight gain, either by increasing food intake or decreasing energy burned.
Generally used to refer to males who could be overpowered and taken advantaged of by other males who are above 200 pounds. Could also be used as a general statement about a male weighing approximately 140-160 pounds or 60-70 kilograms.” - Urban Dictionary.
Your most consistent and "true" weight is generally in the morning, after using the restroom and before eating or drinking anything, because your body has had time to digest overnight, leading to less fluctuation from food, liquids, and daily activities. Weighing at the same time, with minimal clothing, and under consistent conditions helps track trends more accurately than weighing at night when weight is higher due to meals and hydration.
Adult BMI example
"Chubby" isn't a medical term, but it generally refers to being in the Overweight BMI category (25.0 - 29.9 kg/m²) or starting to enter the Obese range (30+ kg/m²), though BMI doesn't account for muscle, body fat percentage, or body composition, making it a general guideline for adults. To find your weight in kg, calculate your BMI: Weight (kg) / Height (m)², and use the ranges (Healthy: 18.5-24.9; Overweight: 25-29.9; Obese: 30+) to see where you stand.
For adults 20 and older, a healthy BMI is between 18.5 and 24.9. We define overweight as a BMI of 25 to 29.9 and obesity as a BMI of 30 or above. For example, if a person is 5'9”, a healthy weight would range from 125 to 168 pounds. We'd consider that person obese if their weight reached 203 pounds.
BMI Categories – What Your Results Mean
If you're 165 cm tall, a healthy weight is between 54 kg and 68 kg. If you weigh over 81 kg, your BMI is above 30, placing you in the obesity range.
Starting between ages 30 and 40, you may find losing weight and exercising more challenging. The exercise you do may not have the same effect as before. It's not necessarily a sign that something is wrong. This weight gain in middle age—known as “middle-age spread”—is a natural consequence of aging.
According to the Centers for Disease Control and Prevention (CDC), most 13-year-old females weigh around 76 to 158 pounds (lb), and most 13-year-old males weigh between 75 and 158 lb , but this can vary widely. The CDC has set guidelines for healthy weight and body mass index (BMI) in children.