I am fortunate enough to have 'real life' friends, from when I was growing up ('Village Friends'), school friends, university friends, college friends, work friends, friends of friends and now, since emigrating, Swedish friends. But thrown into that heady mix are online friends, online friends who have become 'real life' friends and 'real life' friends who are now just online friends.
Boredom reminds me of water that's put under pressure in a steam engine - if you open the tank slightly once in a while to release the pressure, the water will eventually all boil away, and the engine won't work. But if you keep it under pressure all the time, the steam might become so intense that it will make the engine work and the machine will start moving.
These women may run major companies, but their bodies don't know that. In fact, none of ours do. It is a machine that works in the same way that every other human's does, give or take a few things. Subject them to lack of sleep, too much stress and they will respond in exactly the same way: breakdown.
We rely on our beloved rectangles for everything from telling time to finding out what's happening in our friends' lives, from Googling where we're going to eat to unlocking the mysteries of GPS by telling us which street we're walking down. But the problem is that our smartphones are not going to say: 'Hey, you've been stalking that person on Instagram for half an hour - don't you think it's time to sleep?'