Always tired: why your body does not recover, what the GP usually finds and what an energy scan measures

Always tired, even after a full night’s sleep. What the GP usually finds and does not find, what an energy scan measures and when to see a doctor.
Afternoon dip: why your energy drops away after lunch, how long the dip lasts and what helps

Why your energy drops away in the early afternoon, how long an afternoon dip lasts, what bright light and a short sleep do, and what an energy scan measures.