SB5A

• Physical well-being includes being free from disease, eating and sleeping well, getting regular activity, and limiting the intake of harmful substances such as alcohol and drugs.
• Social well-being includes how well you get on with other people,

  and also how your surroundings affect vou
• Mental well-being includes how you feel about yourself.
• pathogen


  a microorganism that causes diseases
• Diseases caused by pathogens are communicable diseases
• Some diseases are non-communicable, because they are not passed from person to person. They are caused by a problem in the body, such as a fault

  in the genes 
• what does obesity mean?


  having too much body fat
• in which two ways is obesity usually measured

  1. body mass index (BMI)
  2. waist : hip
• obesity can be caused by malnutrition because 


  the diet contains too much energy rich foods such as sugar and fat
• which are the three reasons why doctors are concerned about people being obese

  • more likely to die younger
  • more likely to develop cardiovascular disease
  • more likely to develop type II diabetes
• cardio vascular disease is the disease of the 


  heart and blood vessels
• smoking

  increases the risk of cardiovascular disease
• the substance in tobacco smoke that gets into the blood can cause fatty plaques to develop in the walls of blood vessels reducing the rate of blood flow