Chronic stress causes sleep disturbances and increased blood sugar levels. This leads to an endless cycle of more sleep disturbance and increased blood sugar levels, which can also cause type-2 diabetes. To test Yeo took the Maastricht Stress Test for them. To flush out excess glucose, the pancreas pump out insulin which normalises blood sugar levels. Increased levels of insulin and dropping blood sugar level causes hunger and lack of sleep.

Source: The Express Tribune January 24, 2018 08:26 UTC