Where will Prince Philip be buried, will he have a state funeral and where are other royals buried? The Duke of Edinburgh may have a low-key ceremony.
Technology is disrupting human circadian rhythms and robbing us of sleep
With smartphones seemingly ubiquitous in the industrialised world, sleep researchers have confirmed what many already suspected technology is disrupting human sleep in ways we still dont fully understand.
Humans, along with plants, fungi, and animals, possess what is known as a circadian rhythm, the internal clock that regulates our sleep-wake cycle.
As far as scientists can tell, the majority of this rhythm is maintained by the hypothalamus which releases the sleep hormone melatonin and is highly responsive to changes in ambient light, especially around dawn and dusk.
However, artificial light can impact the dynamics of the hypothalamus, and increased exposure to blue light from electronic devices like smartphones, laptops and certain kinds of ereaders is having a gradual impact on modern humans' near 24-hour intrinsic sleep rhythm.
"Light is mainly doing two things to the clock. It is setting the time of the clock and it is changing the amplitude or strength of the clock,” says professor Jamie Zeitzer from Stanford University.
A growing body of research indicates that artificial light can suppress melatonin production in humans, thereby disrupting the natural inclination to sleep at the end of the day, often lengthening the time it takes to drift off to sleep.