늘 건강비서 - 스마트 건강관리

If you measure, you can manage.

Health Assistant brings together 15 professional health calculators and 4 daily trackers in one place. Each calculator is based on certified medical formulas and is calibrated according to Korean standards set by the Korean Society for the Study of Obesity and the Korea Disease Control and Prevention Agency.

This is not a health app that disappears with the passing trend. It is a practical tool for anyone who wants to accurately understand their body through numbers.

[ Body Composition Calculator ]

BMI Calculator -- Calculates Body Mass Index and classifies it according to Korean obesity standards. The Korean standard (BMI 25 or higher is considered obese) differs from the international standard (BMI 30 or higher), and applying incorrect standards can lead to overlooking risks.

Body Fat Percentage Calculator -- Estimates body fat percentage based on the U.S. Navy circumference method. It also displays normal ranges based on age and gender.

Optimal Weight Calculator -- Calculates a healthy weight range based on height and gender.

Waist-to-Hip Ratio -- An indicator for assessing the risk of abdominal obesity, this is the standard actually used in the Korean National Health Checkup.

[ Nutrition & Metabolism Calculator ]

Basal Metabolic Rate (BMR) -- Estimates total daily energy expenditure by applying activity factors to the Mifflin-St. Jeor formula.

Calorie Search -- Search for foods and record daily calorie intake compared to personal goals.

Hydration Guide -- Calculates recommended daily fluid intake based on weight, activity level, and temperature.

[ Sleep & Recovery ]

Sleep Cycle Calculator -- Enter your wake-up time to recommend the optimal bedtime based on a 90-minute REM cycle. Conversely, it also calculates the optimal wake-up time based on your bedtime.

Alcohol Metabolism Calculator -- Estimates blood alcohol concentration and the estimated time for complete breakdown based on alcohol consumption, type of alcohol, and body weight.

[ Women's Health ]

Due Date Calculator -- Enter the start date of your last period to calculate your due date and current gestational age.

Ovulation Calculator -- Predicts your fertile period based on your menstrual cycle length.

[ Fitness ]

Heart Rate Zone Calculator -- Calculates target heart rate zones for fat burning, aerobic exercise, and maximum intensity based on your maximum heart rate.

Smoking Cessation Cost Simulator -- Shows exactly how much you can save in 1, 5, and 10 years if you start quitting smoking today.

[ 4 Daily Trackers ]

Record your daily data right within the health assistant without needing to install a separate app.

Weight Tracker -- Record daily weight changes and track long-term trends with a graph.

Water Intake Tracker -- Displays your current intake against your daily goal as a visual progress bar.

Workout Tracker -- Record workouts by type and automatically calculate calorie expenditure.

Sleep Tracker -- Record bedtimes and wake-up times and analyze sleep patterns.

[ Why Korean Standards Are Important ]

The obesity standard in Korea is 25. Applying the international standard of 30 directly can provide a false sense of reassurance that you are "normal" even if you are actually obese. Health Assistant applies Korean medical standards to provide clinically meaningful results.

[ Premium Report ]

Purchase the Premium Report to receive a detailed health analysis report that synthesizes all calculation results. You can also use it in a clean, ad-free environment.

Supports both Korean and English.

Health Assistant is a health calculator that answers with numbers, not guesswork. If you want to understand your body through numbers, start now.