When people do not eat breakfast their glucose levels are altered. Breakfast helps us keep blood sugar at optimal levels. Skip the original breakfast that blood glucose levels go down and up uncontrollably, which eventually makes us sick with diabetes, for example
If David does not have any problems to properly perform his gluconeogenesis or glycogenolysis, which is the formation of glucose from our reserves in the liver, he should have optimal glucose levels.
1.) by being straight forward yet not rude 2.) using clear words in your sentences that arent on the edge of what you mean 3. ) be precise about what you mean
I would go over to them and help spot them. However, I am not very good at lifting weights so I feel that the next best thing is to call for help while you are attempting to spot them.