Mentally and physically fatigued, I decided to get a breath of fresh air to perk me up. Rather than leave the office and head for the country, I used the brilliant 'Boost Oxygen' instead. It's about the size of an air freshener with an aqualung regulator on the top. All you do is push your mouth to the nozzle, press the button and you're hit with a cold burst of oxygen.
Despite my utter scepticism that all of this was hot air (or, in this instance, cold, grapefruit-flavoured air), I was pleasantly surprised. I was instantly buoyed.
Read more: http://www.tatler.com/news/articles/january-2017/the-gm-diet-plan-2017--general-motors-diet-review