MODULE 1 • WEEK 3
The Impact of Lifestyle on the Respiratory and Circulatory Systems
1 INTRODUCTION 2 COMMON DISEASES AFFECTING
SYSTEMS
The respiratory and circulatory systems work together Asthma: A condition characterized by narrowing and
to transport oxygen, nutrients, and waste products swelling of the airways, leading to breathing
throughout the body. Our lifestyle choices greatly difficulties.
affect how well these systems function. Making
Colds: Common respiratory infections marked by
healthy choices can prevent diseases and promote
symptoms such as sneezing, fever, and congestion.
overall well-being.
Hypertension High Blood Pressure: Caused or
worsened by poor lifestyle choices such as unhealthy
KEY VOCABULARY: diet, smoking, and excessive alcohol intake.
Respiratory system – responsible for gas
Anemia: A condition where the body lacks enough
exchange, healthy red blood cells, causing fatigue, weakness,
bringing oxygen into the body and expelling carbon and loss of appetite.
dioxide.
Heart Disease: Encompasses any condition affecting
Circulatory system – responsible for transporting
heart function, often linked directly to lifestyle factors.
blood, nutrients, oxygen, and waste products
through the heart and blood vessels.
Unhealthy lifestyle – behaviors that negatively
impact body functions, increasing disease risk.
Healthy lifestyle – habits that promote physical, 4 PRINCIPLES FOR SYSTEM
mental, and social well-being, reducing disease risk. MAINTENANCE
Balanced Diet: Eat a variety of nutritious foods,
especially fruits and vegetables. Avoid junk food,
processed foods, carbonated drinks, and alcohol.
Regular Exercise: Engage in physical activities like
jumping jacks, sit-ups, and squats to strengthen
muscles, boost energy, and lower chronic disease
risk.
Adequate Rest & Sleep: Sleep at least 8 hours every
night to support heart rate, breathing, and blood
pressure regulation.
Hydration: Drink at least 8 glasses of water daily to
support normal body functions.
Stress Reduction: Manage stress through enjoyable
activities, taking short breaks, or spending time in a
mindful space.
Science 9 • Quarter 1 • Module 1 • Week 3 Page 1 of 4