Nutrition
Body Systems
Fitness & Exercise
Diseases & Prevention
Random Health Facts
100

What nutrient is the body's main source of energy?

Carbohydrates

100

What organ pumps blood throughout the body?

Heart

100

What is the recommended minimum amount of physical activity teens should get daily?

About 60 minutes

100

What type of disease spreads from person to person?

Infectious/communicable disease

100

How many hours of sleep do most teenagers need each night?

8-10 hours

200

What vitamin is commonly found in citrus fruits and helps support the immune system?

Vitamin C

200

What is the largest organ in the human body?

Skin

200

What does the acronym BMI stand for?

Body Mass Index

200

What are antibodies used for in the body?

Proteins that help fight germs and infections.

200

What body system allows you to breathe?

Respiratory System

300

What are the three main nutrients called macronutrients?

Carbohydrates, proteins, and fats

300

What is the main function of the respiratory system?

Brings oxygen into the body and removes carbon dioxide

300

What exercise improves heart and lung endurance?

Aerobic/cardio exercise

300

What is one way to reduce the risk of heart disease?

Regular exercise, healthy eating, avoiding smoking, managing stress, etc.

300

What organ controls balance and coordination?

Brain

400

Why is fiber important in a person's diet?

Helps digestion and supports healthy bowel function

400

What organ filters waste from the blood and produces urine?

Kidneys

400

What is the difference between muscular strength and muscular endurance?

Strength=how much force a muscle can produce; endurance=how long a muscle can work

400

What is the difference between a contagious disease and a chronic disease?

Contagious disease spread between people; chronic diseases last long time and are often not spread person to person.

400

What hormone helps regulate blood sugar levels?

Insulin

500

A person who eats too much sodium over time may increase their risk of what health condition?

High blood pressure/hypertension

500

What is the largest muscle in the human body?

Gluteus maximus (legs)

500

Why is stretching important before or after exercise?

Helps prevent injury and improves flexibility/range of motion.

500

What lifestyle factors can increase a person's risk for type 2 diabetes?

Poor diet, inactivity, excess body fat, genetics, and other lifestyle factors.

500

What is homeostasis and why is it important?

The body's ability to maintain a stable internal environment.

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