GITNUXREPORT 2025

Normal Condition Statistics

Majority of adults exhibit normal BMI, vital signs, and bodily functions.

Jannik Linder

Co-Founder of Gitnux, specialized in content and tech since 2016.

First published: April 29, 2025

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Statistic 1

Approximately 63% of adults in the United States are considered to be in normal physical condition based on BMI

Statistic 2

Normal body mass index (BMI) ranges from 18.5 to 24.9

Statistic 3

The average total body water content in healthy adults is approximately 60% of body weight

Statistic 4

Normally, the brain weighs about 1,400 grams (3 pounds) in adults

Statistic 5

Approximately 70% of the human body is water, which is considered a normal physiological condition

Statistic 6

Human hair typically grows about 0.5 inches (1.27 cm) per month under normal conditions

Statistic 7

The normal adult human brain weighs approximately 1,350 grams

Statistic 8

The normal lifespan of red blood cells is about 120 days

Statistic 9

Normal serum cholesterol levels are less than 200 mg/dL

Statistic 10

The typical adult cardiac output at rest is about 5 liters per minute

Statistic 11

The average normal hemoglobin level is approximately 13.8 to 17.2 grams per deciliter for men and 12.1 to 15.1 grams per deciliter for women

Statistic 12

About 85% of people with normal immune function have a baseline white blood cell count between 4,000 and 11,000 cells per microliter of blood

Statistic 13

Normal peripheral blood platelet count ranges from 150,000 to 450,000 platelets per microliter of blood

Statistic 14

The normal adult blood volume is about 5 liters, which constitutes approximately 7% of total body weight

Statistic 15

In healthy conditions, the average plasma cholesterol level is less than 200 mg/dL

Statistic 16

The average adult's total blood volume is roughly 4.7 liters in women and 5.6 liters in men

Statistic 17

The average normal brain blood flow is about 750 mL/min, making it highly sensitive to blood flow abnormalities

Statistic 18

The average normal fasting blood sugar level is between 70 and 99 mg/dL

Statistic 19

In healthy adults, the basal metabolic rate (BMR) averages around 1,200 to 1,800 calories per day

Statistic 20

Normal blood serum calcium levels are between 8.5 and 10.2 mg/dL

Statistic 21

The estimated normal rate of bone turnover in healthy adults is approximately 10% per year

Statistic 22

In a typical healthy adult, basal metabolic rate contributes to about 60-75% of total daily energy expenditure

Statistic 23

The human average resting metabolic rate (RMR) is approximately 1,300 to 1,800 kcal/day

Statistic 24

The average normal body temperature is approximately 98.6°F (37°C)

Statistic 25

Normal blood pressure is defined as systolic less than 120 mm Hg and diastolic less than 80 mm Hg

Statistic 26

An estimated 80% of adults worldwide have access to basic sanitation services, which are associated with normal health conditions

Statistic 27

Normal respiration rate for an adult at rest is between 12 and 20 breaths per minute

Statistic 28

Normal kidney function is characterized by a glomerular filtration rate (GFR) of about 90-120 mL/min/1.73 m²

Statistic 29

Normal eye pressure (intraocular pressure) is between 10 and 21 mm Hg

Statistic 30

The normal pH range of human blood is between 7.35 and 7.45

Statistic 31

The average normal adult heart rate at rest is approximately 60 to 100 beats per minute

Statistic 32

The typical range of normal menstrual cycles is every 21 to 35 days

Statistic 33

Normal liver enzyme levels (ALT and AST) are typically less than 40 units per liter

Statistic 34

Normal serum potassium levels range from 3.6 to 5.2 mmol/L

Statistic 35

The normal visual acuity is 20/20, meaning standard vision

Statistic 36

The average normal plasma osmolality is approximately 275-295 mOsm/kg

Statistic 37

The average adult sleeping heart rate is approximately 60-80 beats per minute

Statistic 38

The average interior temperature of the human body is maintained around 98.6°F (37°C)

Statistic 39

The average normal serum magnesium level is around 1.7 to 2.2 mg/dL

Statistic 40

Normal serum alanine aminotransferase (ALT) levels are generally less than 40 units per liter, indicating healthy liver function

Statistic 41

The normal range for human ear temperature is roughly 98.6°F (37°C), similar to oral temperature

Statistic 42

The average mental health status in a normal population indicates that about 85% experience no significant mental health issues

Statistic 43

Approximately 80-90% of healthy adults have a normal body pH between 7.35 and 7.45

Statistic 44

Normal skin pH levels are usually around 4.7 to 5.75, which helps maintain skin health

Statistic 45

Approximately 90% of cases with normal blood sugar levels are within the ranges of 70-99 mg/dL

Statistic 46

In healthy individuals, the normal serum sodium level ranges from 135 to 145 mmol/L

Statistic 47

Lung capacity in a healthy adult is approximately 4 to 6 liters

Statistic 48

Normal lung function as measured by FEV1 (forced expiratory volume in 1 second) is generally greater than 80% of predicted

Statistic 49

A normal adult's sweat chloride level is less than 60 mmol/L, used in cystic fibrosis testing

Statistic 50

The typical adult's functional residual capacity (lung volume after a normal exhalation) is approximately 2.4 liters

Statistic 51

The average normal body oxygen saturation level (SpO2) is between 95% and 100%

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Key Highlights

Approximately 63% of adults in the United States are considered to be in normal physical condition based on BMI
The average normal body temperature is approximately 98.6°F (37°C)
Normal blood pressure is defined as systolic less than 120 mm Hg and diastolic less than 80 mm Hg
An estimated 80% of adults worldwide have access to basic sanitation services, which are associated with normal health conditions
Normal respiration rate for an adult at rest is between 12 and 20 breaths per minute
The normal lifespan of red blood cells is about 120 days
Lung capacity in a healthy adult is approximately 4 to 6 liters
Normal serum cholesterol levels are less than 200 mg/dL
The typical adult cardiac output at rest is about 5 liters per minute
The average normal fasting blood sugar level is between 70 and 99 mg/dL
Normal kidney function is characterized by a glomerular filtration rate (GFR) of about 90-120 mL/min/1.73 m²
In healthy adults, the basal metabolic rate (BMR) averages around 1,200 to 1,800 calories per day
Normal eye pressure (intraocular pressure) is between 10 and 21 mm Hg

Did you know that the vast majority of adults in the U.S. and worldwide maintain vital signs and health markers within well-defined normal ranges, offering a reassuring glimpse into human resilience and biological stability?

Body Composition and Structural Data

Approximately 63% of adults in the United States are considered to be in normal physical condition based on BMI
Normal body mass index (BMI) ranges from 18.5 to 24.9
The average total body water content in healthy adults is approximately 60% of body weight
Normally, the brain weighs about 1,400 grams (3 pounds) in adults
Approximately 70% of the human body is water, which is considered a normal physiological condition
Human hair typically grows about 0.5 inches (1.27 cm) per month under normal conditions
The normal adult human brain weighs approximately 1,350 grams

Body Composition and Structural Data Interpretation

While about six in ten Americans maintain a BMI within the healthy zone and our brains weigh a mere 1,350 grams—reminding us that even in normalcy, our bodies are intricate, water-rich, humidically balanced marvels that keep us functioning without a splash—or a hair-raising surprise.

Circulatory and Blood Health Data

The normal lifespan of red blood cells is about 120 days
Normal serum cholesterol levels are less than 200 mg/dL
The typical adult cardiac output at rest is about 5 liters per minute
The average normal hemoglobin level is approximately 13.8 to 17.2 grams per deciliter for men and 12.1 to 15.1 grams per deciliter for women
About 85% of people with normal immune function have a baseline white blood cell count between 4,000 and 11,000 cells per microliter of blood
Normal peripheral blood platelet count ranges from 150,000 to 450,000 platelets per microliter of blood
The normal adult blood volume is about 5 liters, which constitutes approximately 7% of total body weight
In healthy conditions, the average plasma cholesterol level is less than 200 mg/dL
The average adult's total blood volume is roughly 4.7 liters in women and 5.6 liters in men
The average normal brain blood flow is about 750 mL/min, making it highly sensitive to blood flow abnormalities

Circulatory and Blood Health Data Interpretation

Understanding the body's finely tuned statistics—from red blood cell longevity to brain blood flow—reminds us that human health is a complex orchestra where even minor deviations can turn the symphony into dissonance.

Metabolic and Endocrine Metrics

The average normal fasting blood sugar level is between 70 and 99 mg/dL
In healthy adults, the basal metabolic rate (BMR) averages around 1,200 to 1,800 calories per day
Normal blood serum calcium levels are between 8.5 and 10.2 mg/dL
The estimated normal rate of bone turnover in healthy adults is approximately 10% per year
In a typical healthy adult, basal metabolic rate contributes to about 60-75% of total daily energy expenditure
The human average resting metabolic rate (RMR) is approximately 1,300 to 1,800 kcal/day

Metabolic and Endocrine Metrics Interpretation

Navigating the body's intricate balance, these statistics reveal that healthy adults maintain a delicate metabolic dance—balancing blood sugar, calcium, and bone turnover—while burning through roughly 1,500 calories daily, underscoring that our bodies are both finely tuned and remarkably efficient, if we pay attention.

Physiological Vital Signs and Measurements

The average normal body temperature is approximately 98.6°F (37°C)
Normal blood pressure is defined as systolic less than 120 mm Hg and diastolic less than 80 mm Hg
An estimated 80% of adults worldwide have access to basic sanitation services, which are associated with normal health conditions
Normal respiration rate for an adult at rest is between 12 and 20 breaths per minute
Normal kidney function is characterized by a glomerular filtration rate (GFR) of about 90-120 mL/min/1.73 m²
Normal eye pressure (intraocular pressure) is between 10 and 21 mm Hg
The normal pH range of human blood is between 7.35 and 7.45
The average normal adult heart rate at rest is approximately 60 to 100 beats per minute
The typical range of normal menstrual cycles is every 21 to 35 days
Normal liver enzyme levels (ALT and AST) are typically less than 40 units per liter
Normal serum potassium levels range from 3.6 to 5.2 mmol/L
The normal visual acuity is 20/20, meaning standard vision
The average normal plasma osmolality is approximately 275-295 mOsm/kg
The average adult sleeping heart rate is approximately 60-80 beats per minute
The average interior temperature of the human body is maintained around 98.6°F (37°C)
The average normal serum magnesium level is around 1.7 to 2.2 mg/dL
Normal serum alanine aminotransferase (ALT) levels are generally less than 40 units per liter, indicating healthy liver function
The normal range for human ear temperature is roughly 98.6°F (37°C), similar to oral temperature
The average mental health status in a normal population indicates that about 85% experience no significant mental health issues
Approximately 80-90% of healthy adults have a normal body pH between 7.35 and 7.45
Normal skin pH levels are usually around 4.7 to 5.75, which helps maintain skin health
Approximately 90% of cases with normal blood sugar levels are within the ranges of 70-99 mg/dL
In healthy individuals, the normal serum sodium level ranges from 135 to 145 mmol/L

Physiological Vital Signs and Measurements Interpretation

Just as a well-calibrated watch keeps perfect time, the human body's array of normal vital signs—from temperature and blood pressure to pH and heart rate—remind us that health often hinges on subtle balances rather than dramatic deviations.

Respiratory and Lung Function Parameters

Lung capacity in a healthy adult is approximately 4 to 6 liters
Normal lung function as measured by FEV1 (forced expiratory volume in 1 second) is generally greater than 80% of predicted
A normal adult's sweat chloride level is less than 60 mmol/L, used in cystic fibrosis testing
The typical adult's functional residual capacity (lung volume after a normal exhalation) is approximately 2.4 liters
The average normal body oxygen saturation level (SpO2) is between 95% and 100%

Respiratory and Lung Function Parameters Interpretation

While our lungs comfortably hold 4 to 6 liters of air and our blood's oxygen saturation hovers near perfection, consistent normal readings—from sweat chloride to FEV1—serve as a vital reminder that maintaining the body's intricate balance remains a finely tuned, and often elusive, feat.