What nutrient is the body's main source of energy?
Carbohydrates
What organ pumps blood throughout the body?
Heart
What is the recommended minimum amount of physical activity teens should get daily?
About 60 minutes
What type of disease spreads from person to person?
Infectious/communicable disease
How many hours of sleep do most teenagers need each night?
8-10 hours
What vitamin is commonly found in citrus fruits and helps support the immune system?
Vitamin C
What is the largest organ in the human body?
Skin
What does the acronym BMI stand for?
Body Mass Index
What are antibodies used for in the body?
Proteins that help fight germs and infections.
What body system allows you to breathe?
Respiratory System
What are the three main nutrients called macronutrients?
Carbohydrates, proteins, and fats
What is the main function of the respiratory system?
Brings oxygen into the body and removes carbon dioxide
What exercise improves heart and lung endurance?
Aerobic/cardio exercise
What is one way to reduce the risk of heart disease?
Regular exercise, healthy eating, avoiding smoking, managing stress, etc.
What organ controls balance and coordination?
Brain
Why is fiber important in a person's diet?
Helps digestion and supports healthy bowel function
What organ filters waste from the blood and produces urine?
Kidneys
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
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.
What hormone helps regulate blood sugar levels?
Insulin
A person who eats too much sodium over time may increase their risk of what health condition?
High blood pressure/hypertension
What is the largest muscle in the human body?
Gluteus maximus (legs)
Why is stretching important before or after exercise?
Helps prevent injury and improves flexibility/range of motion.
What lifestyle factors can increase a person's risk for type 2 diabetes?
Poor diet, inactivity, excess body fat, genetics, and other lifestyle factors.
What is homeostasis and why is it important?
The body's ability to maintain a stable internal environment.