Health Impacts Overview

Health Impacts

• Cardiovascular Disease: Conditions affecting the heart or blood vessels.
• Obesity: A condition where the body has excessive fat.
• Healthy Fats: Good fats (e.g., avocados, nuts, seeds, fatty fish).
• Tooth Decay: Rotting of teeth, often due to high sugar intake.
• Type 2 Diabetes: A condition impacting the body's sugar processing.
• Insulin: Hormone regulating glucose (sugar) absorption.
• Glucose: Sugar.
• Osteoporosis: Bone tissue loss/holes in bones.
• Allergies: Negative reactions to substances like food, dust, or fur.
• Anaphylaxis: Life-threatening allergic reaction (difficulty breathing, shock).
• Cancer: Uncontrolled growth of bad cells. Prevention includes healthy weight, avoiding cigarettes/alcohol, and a healthy diet.
• Antioxidants: Substances protecting cells from damage.
• Key Foods for Health: Specific foods from worksheets/handouts are important.

Structures

• Classifying Structures:
  • Solid: Single piece of solid material.
  • Frame: Connected pieces like a skeleton.
  • Shell: Hollow structure using less material.
  • Combination: Combining shell, frame, and solid. (Example: a house).
• Internal & External Forces:
  • External: Forces from outside (e.g., gravity, water pressure, wind).
  • Static: Unchanging force (weight).
  • Dynamic: Changing force.
• Preventing Structural Failure: Designers use these approaches to reduce failure risk.
  • Designing for Loads: Making structures strong enough to support expected weights.
  • Designing for Safety: Meeting safety standards and requirements (e.g., building codes).
  • Designing for Efficiency: Using the fewest resources while maintaining strength and safety.
  • Sensors: Devices detecting early problems like structural weaknesses or vibrations.
• Structural Strength:
  • Shapes: Triangles are strong.
  • Components: Pillared, arched structures add strength.
  • Materials: Different materials have varying strength and flexibility.
• Centre of Gravity: Point balancing the structure's weight.
• Stability: Structure's ability to resist forces.
• Product Design:
  • Recall: When a product issues arise and is pulled from shelves.
  • Ergonomics: Designing products for comfortable and efficient use.
  • Symmetry: Balanced design appearing the same on both sides.
• Structural Issues:
  • Stress: Bending over time.
  • Fatigue: Cracking due to forces.
  • Failure: Complete collapse caused by stress or fatigue.