Dr Miles Langdon fails to mention the difference between the two basic types of cholesterol; high-density lipoprotein (HDL) and low-density lipoprotein (LDL). HDL is good for you, LDL is bad.
Tests normally conducted by the NHS make no distinction between the two, so doctors cannot make an informed decision on what treatment, exercise regimes or dietary changes might be necessary.
Should your GP suggest that your cholesterol levels be checked, make sure the test makes that distinction.
If it doesn’t, any results are not worth the paper they a written on.