A person is diagnosed as being at risk of coronary heart disease (CHD).
Statins are drugs often prescribed to people at risk of CHD. Explain how statins reduce the risk of coronary heart disease.
A doctor decides to fit a stent in one of the patient's blood vessels. In which type of blood vessel is a stent fitted?
Tick (✓\checkmark✓) one box.
Explain how a stent helps to prevent a heart attack.
Table 1 shows the effect of daily exercise duration on the percentage (%) decrease in the risk of developing CHD compared to a person who does no exercise.
Table 1
| Daily exercise category | Daily exercise duration (minutes) | Percentage (%) decrease in risk of CHD |
|---|---|---|
| P | 10 | 12 |
| Q | 20 | 25 |
| R | 30 | 38 |
| S | 45 | 40 |
Give two conclusions that can be made from the data in Table 1.
Describe one lifestyle factor, other than daily exercise, that can increase the risk of coronary heart disease.